7) It’s getting late.We really must go.
8) May borrow your pen?
9) I cannot understand why you're so upset.
10) She has to admit, it's incredibly exciting.
11) I hope they will not be late.
12) What should he say when they ask?
Объяснение:
7) Must (без to, т.к. модальный)
8) May I borrow (без do, т.к. may - самостоятельный)
9) Can't (Am не нужно)
10) She has to admit (+ to, т.к. это форма глагола have to)
11) Will not (отрицательная частица в утвердительном/отрицательном стоит после глогола)
12) What should he say (вопросительное предложение, should перед глаголом)
1. Peter can't make a shelf. Can Peter make a shelf?
2. Ann could not go there yesterday. Could Ann go there yesterday?
3. His friends will not be able to help him on sunday. Will his friends be able to help him on Sunday?
4. Our pupils can't read and speak English. Can our pupils read and speak English?
5. The tourists will not be able to reach the village before dark. Will the tourists be able to reach the village before dark?
6. I can't show you the way to the park. Can I show you the way to the park?
7. He could not buy the tickets beforehand. Could he buy the tickets beforehand?
8. You will not be able to catch the train. Will you be able to catch the train?
3. The documentary has just finished.
Поменять местами just и finished.
4. They've had the same TV set for 20 years.
Since используется с опредёленной даты.
5. I already saw that film.
неопределённое время - мы не знаем когда он посмотрел фильм, и это знание нам не нужно для контекста. Используем Past Simple.
6. Have you ever been on TV?
Глагол be должен быть использован в третьей форме.
7. I haven't watched that program since they've changed the presenter.
Вроде всё правильно.
8. We've known each other for ages.
Present Perfect т.к. они знали друг друга давно и всё ещё продолжают знать, действие продолжается по сей день.
9. I have never liked watching live sports.
Ошибка в том что изначально написано haven't never, что буквально значит have not never.
10. Have the news started yet?
News - множественное число, мы не можем использовать has.