while和when 在过去式中的选词填空

When可长也可短，While可长，两处都长用while 连接

用when 或者while 填空

1.I was doing my homework my mother was doing the cleaning.

2.I am answering your questions, you are searching on the net!

3.I was dancing my sister was singing

4.I will let you know he comes back.

5.I was listening to music mum was cooking in the kitchen this time yesterday.

6.My mother was cooking my father was watching TV.

7. she got home, she did her homework.

8. I walk in the street , I saw an accident.

9.I was playing the piano someone knocked at the door .

10.Some students were climbing the mountains others were swimming in the river .

11. my mother was cooking , I was watching TV.

12. Tom got home , his sister was doing her homework .

13. she was walking in the street , she saw an accident .

14. I left school it was 5 o’clock.

15. It was raining, my father went back.