Упражнение 4 и 5
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Упражнение 4

1)Kim was crossing the street when he saw Jane

2)I was serving the table when she dropped a glass

3)She was driving home as the engine broke down

4)Jake and Kiley were leaving the shop when the police officer stopped them

5)The children were playing while their mother was cooking

Упражнение 5

1)They were having a conference last Tuesday at 5 o'clock in the evening

2)We were serving the table when guests arrived

3)I was already sleeping when I heard a knock at the door

4)He was walking down the road when he slipped on the banana skin

5)Mother was cooking while I was doing my homework.He was reading the contract, when his boss called