23．Mr. Smith was so angry at all ______ Bill was doing ______ he left.

A. that; what　　　 B. that; that　　　 C. which; which　　　 D. what; that

22．　 These shoes look very good. I wonder __________.

A. how much cost they are　　　　　 B. how much do theycost　　　　　　　　　 C. how much they cost　　　　　　　　 D. how much are they cost

15.Before he ___had showed us around the house_______, he_______showed us a picture___________

14. After we ___had had hour teats________, we ___had a long holiday___________

13. The car had broken before Jim's father manded it.

12.　 We ate the dumplings after we had cooked them.

11. What had she written by the end of 1960?