1、They weren't in Shanghai last week
2、She wasn't in Grade last year
3、How did you go there?
4、I cried at home last night
5、He didn’t have classes this morning
6、Were they in Shanghai last week?
7、What were you?
8、I wasn't a student
9、You were absent from school two days ago
10、How many books did you buy?
11、Where was she last year?
12、We did not have a good time yesterday
13、She got lost just now
14、He always worked into night those days