Grammar, Word Order, Punctuation Diagnostic Test With Answers 7

Singular they is used with a singular noun such as a patient when the person's gender is unknown or unimportant. It still takes a plural verb: they are, not they is. This is standard in modern English, including formal and medical writing, so the sentence is correct. The older he or she is is also possible, but it is more awkward.

Mean to + infinitive means 'intend to': We mean to go = we intend to go. Where no man has gone before is a relative clause of place, and it correctly uses the present perfect (has gone) for an experience up to now. The sentence is grammatically correct.

The report is made a month later, so the time expression must shift. Ago is measured from the moment of speaking, so a week ago becomes the week before (or the previous week). The past simple saw also backshifts to the past perfect had seen. Not a week ago: a month later, it would mean a week before the report, which is the wrong time.

The + adjective (or participle) can refer to a group of people, and it takes a plural meaning: the rich, the elderly, the fashionably inclined (= people who like fashion). The adverb fashionably correctly modifies the participle inclined. Quality is used here as an adjective meaning 'high-quality' (quality footwear), which is common in advertising. The sentence is correct.

Group nouns made from the + adjective (the poor, the rich, the unemployed) do not normally take the possessive 's. Use an of-phrase instead: The problems of the poor cannot be solved by the rich. You could also write Poor people's problems cannot be solved by rich people. So The poor's problems is incorrect.