Question 1
I think Jeremy's aunt wants to know _____ they went for their honeymoon.
The gap starts a noun clause about a place: they went somewhere for their honeymoon, so we use where. What doesn't fit because nothing is missing after went.
Question 2
The high value of the pound at the moment explains _____ manufacturers and exporters are suffering.
Explain why introduces a reason: the high pound is the reason manufacturers are suffering. How long would ask about time, which makes no sense here.
Question 3
I'm sure I'm not the first to notice _____ your daughter is a very talented artist, especially for her age.
After notice we use that to introduce a full statement: notice that your daughter is very talented. What can't be used because the clause is already complete.
Question 4
_____ we rent this shop again next year depends on the amount of profit we make.
A noun clause beginning with Whether can be the subject of a sentence: Whether we rent the shop again is the subject of depends. It shows two possibilities (we rent it or we don't).
Question 5
We are not sure yet _____ we want to spend on flowers at our wedding.
We spend an amount of money, so the question word is how much. How often or how long don't go with spending money on flowers here.
Question 6
It wasn't until he refused to help his mother organise his aunt's funeral that I realized _____ selfish Mike is.
How + adjective describes a degree: I realized how selfish Mike is (= that he is very selfish). Not what, because what cannot come directly before an adjective like selfish.
Question 7
Will you ask the salesman to explain _____ they ordered their next year's supply from our competitors?
Explain why asks for a reason: the salesman should explain the reason they bought from the competitors. Where doesn't fit because the place (from our competitors) is already given.
Question 8
I would like to know _____ the trains will be running normally during the public holiday.
Whether introduces an indirect yes/no question: Will the trains be running normally? → I'd like to know whether the trains will be running normally. What and which need a missing noun or object, and nothing is missing here.
Question 9
The main question on the exam asked us to explain _____ glaciers were formed.
Explain how asks about the process or way something happens: how glaciers were formed. Not however, which means 'in whatever way' or 'but' and cannot introduce this noun clause.
Question 10
I'm sorry, I don't know _____ department Mrs Green works in.
Which + noun asks about one of a limited group: which department. Not where, because where cannot come before a noun, and in already shows the place.
Question 11
My sister-in-law collects Victorian cheese dishes and buys one _____ she sees one for sale in an antique shop.
Whenever means 'every time that': she buys one every time she sees one for sale. Whichever would need a noun or a choice between things, which doesn't fit here.
Question 12
I can't see _____ the purpose of the new shopping centre is. There are more than enough in town already!
The clause asks What is the purpose?, so we use what: I can't see what the purpose is. Not why, because the word purpose already expresses the reason.
Question 13
Do you have any idea _____ I should send my letter of resignation to?
The person is the object of the preposition to: send my letter to someone. In formal English the object form is whom: whom I should send it to. What is for things, not people.
Question 14
I'm not sure _____ the branch manager is the right person to send it to.
I'm not sure whether introduces an indirect yes/no question: Is the branch manager the right person? Not whom, because the clause already has its subject (the branch manager).
Question 15
I can't remember _____ people came to the party, but it was quite a few.
People is a countable plural noun, so we ask about the number with how many. Not how much, which is used with uncountable nouns such as money or time.
Question 16
We can't decide _____ to do at the weekend. Have you got any interesting suggestions?
What to do is a question word + infinitive meaning 'what we should do'. Where to do is wrong because the verb do needs an object, and what gives it one.
Question 17
I'm not sure _____ this sweater will fit my daughter. Can I exchange it for a larger size if it is too small?
Whether introduces an indirect yes/no question: Will this sweater fit? → I'm not sure whether it will fit. How would ask about the way, which doesn't match the next sentence about size.
Question 18
Thousands of cattle have starved to death _____ the drought in Ethiopia started.
The present perfect have starved goes with since + a starting point in the past: since the drought started. Not when, because a past when-clause needs the past simple (died when the drought started), not the present perfect.
Question 19
I don't know _____ month you should plant tulip bulbs. Why don't you ask a florist?
Which + noun asks about one choice from a group: which month of the year. When is also about time, but it cannot come directly before a noun like month.
Question 20
_____ the road is closed has meant that many tourists are reluctant to visit the village this summer.
The fact that + full clause works as the subject of a sentence: The fact that the road is closed is the subject of has meant. Not Whether or not, because the road being closed is a known fact, not one of two possibilities.
Question 21
For the last few weeks, medical teams _____ day and night in an effort to find out exactly what _____ this terrible illness but they've had little success so far.
For the last few weeks plus a continuing action points to the present perfect continuous: have been working. The illness is happening now, so the noun clause uses the present continuous: what is causing it. The future forms don't fit a current situation.
Question 22
The police were investigating who _____ the gate to the factory open the night before the robbery.
The police were investigating in the past, and the gate was left open even earlier, the night before the robbery. For an action that happened before another past time, we use the past perfect: who had left the gate open. Not was left, because a passive verb cannot have an object (the gate) after it.
Question 23
How you look after yourself following your operation _____ whether you recover completely or not.
Your recovery comes in the future, after the operation, so we use will determine. The noun clause How you look after yourself is the subject. Not is determined, because the passive would need an agent and makes no sense with the object whether you recover.
Question 24
Today with mail merge computer software, the same letter can be addressed to 100 different people at the touch of a button, so a secretary today _____ in hours what it _____ days to do 50 years ago.
Today shows present ability: a secretary can accomplish the work in hours. 50 years ago shows a past situation that is no longer true: it used to take days. Could accomplish / takes reverses the time references.
Question 25
I'm not sure whether I _____ able to speak German confidently when I _____ there next month as I haven't practised for so long.
The main idea is about the future, so we use will be able. After the time word when, we use the present simple for the future: when I go there next month. Not am / will go, because will is not used after when in time clauses.
Question 26
It has been claimed recently _____ using mobile phones can cause brain damage.
In the pattern It has been claimed/said/reported, a full statement follows with that: It has been claimed that…. Not if, because if introduces doubt or a yes/no question, not a reported statement.
Question 27
I couldn't believe _____ hot chilli powder Margaret had used in her curry. I could hardly eat it.
Powder is uncountable, so we ask about the amount with how much. Not how few, which goes with plural countable nouns.
Question 28
I've lost count of _____ times the children have watched their "Toy Story" video.
Lose count of means you can no longer remember the number. Times is countable, so we say how many times. Not how much, which goes with uncountable nouns.
Question 29
I would like to know _____ bag this is because it's occupying my seat.
Whose + noun asks who owns something: whose bag this is. Not which, because the speaker wants to know the owner, not to choose one bag from a group.
Question 30
I might be able to tell you _____ channel the film is on if I can remember _____ I put the newspaper.
Which + noun asks about one choice from a group: which channel. The second gap is about a place, where I put the newspaper. In the other options, either the first or the second word doesn't fit.
Question 31
Mrs Holiday _____ that the builders had made a terrible job of her extension.
Grumble means to complain in an unhappy way, and it fits a bad job by the builders: She grumbled that the work was terrible. Not predicted, because the job had already been done (had made).
Question 32
The police _____ that the fire at the warehouse had been started deliberately.
Suspect that means to believe something is probably true without proof yet: The police suspected that the fire had been started deliberately. Not estimated, which is used for numbers and amounts.
Question 33
My husband and I eat at the Draper's restaurant _____ we go shopping in Shrewsbury.
Whenever means 'every time that': they eat there every time they go shopping. Not wherever, because the place (in Shrewsbury) is already given.
Question 34
The professor _____ that the nutritionist said chocolate was healthy only because she is employed by one of the biggest chocolate companies.
Argue that means to give reasons for an opinion: the professor argued that the nutritionist was not neutral. Not wondered, which is followed by if/whether, not that.
Question 35
The Royal Ballet is attempting to recreate the ballet “Dante Sonata”. Luckily for the producer, some of the former dancers _____ how the dance was performed fifty years ago.
The former dancers performed fifty years ago, so they can remember how the dance was done, which is lucky for the producer. Not predict, which is about the future.
Question 36
The accused man _____ that he acted in self-defence.
Claim that means to say something is true when others may not believe it, which suits a defendant: He claimed that he acted in self-defence. Not suspected, because a person knows his own reasons and doesn't just suspect them.
Question 37
Yes, that is _____ I want you to behave in public.
Behave is about manner, so we use how: that is how I want you to behave (= the way). Not what, because behave doesn't take an object.
Question 38
The enjoyment of the film "Erin Brockovich" rather depends on _____ you like Julia Roberts or not.
Whether … or not shows two possibilities. After a preposition like depends on, we must use whether, not if: It depends on whether you like her. If cannot follow a preposition.
Question 39
Donating some of your wages to a charity will not only help unfortunate people, but it will also give you a sense of pleasure, _____ charity you support.
Whichever + noun means 'it doesn't matter which one': whichever charity you support. Not whoever, because it cannot come before a noun like charity.
Question 40
I guessed from the shape of the package _____ my birthday present was a cassette.
Guess that + full statement: I guessed that my present was a cassette. The clause is complete, so what or which cannot be used.
Question 41
Helen will be working as a representative for Thomson's Holidays in Turkey, but she doesn't know exactly _____ she will be posted.
Be posted means to be sent to work in a particular place, so the question is about place: where she will be posted. Not what, because nothing is missing after posted.
Question 42
It's important to find out _____ she is actually allergic to.
We are allergic to something, and the clause has no object after to, so we need what: find out what she is allergic to. Where or why cannot be the object of to.
Question 43
The fans were sent home because the police _____ that the violence could escalate.
Fear that means to worry that something bad will happen, which is why the fans were sent home. Not hoped, because nobody wants violence to escalate.
Question 44
In the United Kingdom, the law _____ that cars must be tested for safety every year.
Stipulate means to state clearly as a rule or condition, usually in a law or contract: The law stipulates that cars must be tested. Not threatens, which is about warning of harm.
Question 45
The results of the survey _____ that most customers would prefer longer opening hours.
Indicate that means to show or suggest something, often from evidence or data: The results indicated that…. Not assumed, because only people can assume. Results are evidence, not opinions.
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