Put the verbs into the correct Past form. 1) I didn't go out last night because I (not/finish) my homework. 2) This time last week I (fly) to Paris. 3) I (mop) the floor while my brother (cut) the grass. 4) Alan had a headache because he (play) computer games all afternoon. 5) Simon (save) money for a long time before he bought his own house. 6) Paul (not/watch) a DVD yesterday. 7) We (walk) for an hour when it started to rain. 8) Wendy (cook) dinner for over two hours before the guests arrived. 9) Kate was bored because she (not/go out) all weekend. 10) Harry (dig) in the garden so he was covered with mud.

Correct answers

1. I didn't go out last night because I hadn't finished my homework.

2. This time last week I was flying to Paris.

3. I was mopping the floor while my brother was cutting the grass.

4. Alan had a headache because he had been playing computer games all afternoon.

5. Simon had been saving money for a long time before he bought his own house.

6. Paul didn't watch a DVD yesterday.

7. We had been walking for an hour when it started to rain.

8. Wendy had been cooking dinner for over two hours before the guests arrived.

9. Kate was bored because she hadn't gone out all weekend.

10. Harry had been digging in the garden, so he was covered with mud.

Объяснение грамматических времён

Основные правила:

• Past Simple — завершённое действие в прошлом. Например: didn't watch.

• Past Continuous — действие, происходившее в определённый момент в прошлом. Например: was flying.

• Past Perfect — действие, которое произошло или не произошло до другого момента в прошлом. Например: hadn't finished.

• Past Perfect Continuous — действие, которое продолжалось до определённого момента в прошлом; часто подчёркиваются его длительность или результат. Например: had been playing.

Особенно важно: выражения for an hour, for a long time, for over two hours и all afternoon часто указывают на продолжительность действия, поэтому в предложениях 4, 5, 7 и 8 используется Past Perfect Continuous.