ответ:Утвердительные
I put on me clothes after I got up. – Я оделся после того, как встал.
By the time the guests came the table had been already served. – Стол был уже накрыт к тому времени как пришли гости.
James had washed his hands before he went to the canteen. – Джеймс помыл руки прежде, чем пошел в столовую.
The students said that he hadn’t done his homework. – Студент сказал, что он не выполнил свое домашнее задание.
Вопросительной
When had the telephone rang? – Когда телефон зазвонил?
Had they bought the tickets when the play began? – Они купили билеты перед началом спектакля?
Had they already seen this film when you ask them about it? – Они уже смотрели этот фильм, когда ты спросил их о нём?
Had Mommy cooked the dinner when her children came home? – Мама приготовила обед к приходу детей из школы.
Объяснение:
III
21 a
22 a
23 a
24 a
25 b
26 b
27 c
28 c
29 должна быть форма had received
30 d
IV
31. Ann didn't pick up the phone because she was dealing with another customer when it rang.
32. While he was travelling in South Africa, he got the idea for his new movie.
33. It rained yesterday.
34. It was raining all day yesterday.
35. When we returned from London it had been raining for 3 hours.
36. When we returned from London it didn't rain any more.
37. He had graduated from the University before he moved to Moscow.
38. He graduated from the University last year.
39. When he came home his family was waiting for him.
40. They had been driving all night when finally they saw the lights of a big city.