42.I had to admit that I know little about economics.

13.Who ( ) gave you those flowers?

12.( ) anything wrong with the machine?

11.Last year I often ( ) that library.

10.I haven’t paid DJ Richard ( ).

9.Her brother ( ) in the army for three years.

8.There have been a lot of changes ( ) 1978.

7.We ( ) everything together， but now we don’t.

6.I ( ) sleep well when I was younger.

5.I was reading the newspaper ( ) Joyce came over to chat.

4.What ( ) in their spare time?