Ex. 4.
Put the verbs into the correct form :
1.He (to drive) to work for ten minutes when suddenly his car broke down.
2. She looked tired. She (to work) all day.
3.Mara’s dress was wet. She (to wash) her toys.
4.It was reported that the government (to experiment) some changes in the country’s schools.
5.by that time teachers (to use) the textbooks as “platforms” for classroom exercises for two years.
6.They (to study) English for 3 years when they started to learn French.
7.I (to wait for) my friend so long before she came at last.
8.We (to listen) to music for some time when my parents returned from work.
9. It was known that for months the officials (to work) on the plan how to improve the life of disabled people.
10.A man (to be) unconscious for a few minutes when a doctor came.
11.I (talk) over the phone for a whole hour when my neighbour knocked at the door.
12.The girl (play) the piano for an hour when her parents came.
13. We (sit) in the room for twenty minutes when the taxi arrived.
14.The artist (paint) for many years but he couldn’t sell most of his works.

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