Ответ: 1) David came in when the children wrote the test.

2) Mike phoned me when i was taking a shower.

3) Mike was speaking to me when his little sister took his book out of his schoolbag.

4) We were metting them when we were standing at the bus stop.

5) I slept when his mother came back.

6) On Monday Mary cooked lunch when the postman was brining from a letter from her freind.

7) When the teacher came into the classroom, the chidren were siting at their desks.