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1) I was listening to the radio while Mary was cooking dinner. 
2) You did you buy this book yesterday? 
3) Last Friday Jill  went home early because she wanted to se 
4)When your brother usually get home in the evening? 
5)Jane always brings us a nice present. 
6)What those people doing in the middle of the road? 
7)Have you read this book? 
8)While Fred was sleeping, Judy was watching TV. 
9)When I was young, I thought Mary was nice. I think she’s fantastic. 
10)Jill was walking home when she saw her husband’s car outside
11)Sue and Tim are running to school. 
12)Jack’s father doesn’t work in London — he doesn’t speak, English. 
13)Joe bought a car yesterday. 
14)Their father often  goes to rock concerts. 
15)While you were sleeping, mother arrived.