Question 1
I am very cold. All the windows are open. _____ close the windows, please?
We use Can you …? to ask someone to do something for us: Can you close the windows, please?
Question 2
A: Jane is always alone.
B: Yes. She _____ have many friends.
Jane is always alone, so maybe she has no friends. Might not means 'maybe not': She might not have many friends.
Question 3
A: Hi! _____ I speak to Jenny?
B: I'm sorry. You _____ have the wrong number.
Can I …? is a polite request on the phone. There is no Jenny here, so B is sure: You must have the wrong number.
Question 4
Where is Mr Anderson? He's not in his office. I don't know. He _____ be at a meeting.
The speaker doesn't know, so it is only a possibility. We use might for 'maybe': He might be at a meeting. Not must, because the speaker is not sure.
Question 5
A: I am very late for school. _____
B: Of course, sweetheart.
A is late for school and needs help getting there. Can you give me a lift to school? means 'Can you take me to school in your car?'
Question 6
A: Where does Emma live?
B: I don't know. She _____ in the town centre.
B says I don't know, so it is only a possibility. We use might: She might live in the town centre.
Question 7
A: How old do you think our teacher is?
B: _____ because she's as old as my mother.
B has a good reason (she's as old as my mother), so B is almost sure. We use must when we are sure: She must be fifty-two.
Question 8
A: There is no bread at home. _____
B: OK. I will get some on my way home.
There is no bread, and B says I will get some. So A asks: Can you buy some bread, please?
Question 9
I'm going on holiday but I'm worried about my plants. _____
The speaker is worried about the plants, so he asks for help. Look after means 'take care of': Can you look after them?
Question 10
A: My stomach is rumbling.
B: You _____ be hungry.
A rumbling stomach is a clear sign, so B is sure. We use must when we are sure: You must be hungry.
Question 11
A: Dad, I am bored at home. _____
B: Yes, but don't come home late.
Dad says don't come home late, so the child wants to go out. We use Can I …? to ask for permission: Can I go out with my friend?
Question 12
A: The room is stuffy. _____
B: Go ahead.
The room is stuffy (it has no fresh air), so A asks for permission: May I open the window? Go ahead means 'Yes, you can.'
Question 13
Sally is wearing a wedding ring. She _____ be married.
A wedding ring is a clear sign, so we are sure. We use must: She must be married. Not might, because we are not just guessing.
Question 14
A: _____
B: Yes, I'd like to buy a present for my friend.
B says I'd like to buy a present, so A works in a shop. Shop assistants offer help with May I help you?
Question 15
A: Where are my keys, Sam?
B: I don't know. _____
Sam wants to help, so he makes an offer. We use Shall I …? to offer to do something: Shall I look in my room?
Question 16
Henry is doing his homework. You are listening to music loudly. Henry says: _____
The loud music is a problem for Henry's homework, so he asks you to make it quieter. Turn down means 'make quieter': Can you turn down the music?
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