1.) How long did you stay there?/How long was Nick doing his homework?
2.) Where did Sam go yesterday?/ Where was Mary walking until I rang her?
3.) What was Ann doing at 5 o'clock last Friday?/ What did you do last weekend?
4.) Why did you send her an e-mail two weeks ago?/ Why was Ally watching that show from 3 till 4 yesterday?
5.) Whom did Alex write a letter last Monday?/ Whom was you doing a present before I came to you?
6.) How was you clining your room from 5 till 7 yesterday?/ How did you play with her brother yesterday?
7.) When did he start his work?/ When was Peter cooking?
8.) Who did paint this picture?/ Who was working in her garden from 9 till 11 yesterday?