31．Not until they left school 　　　　how much their teachers loved them and helped them.

　　　 A．they realized　　　　　　　　　　　　　　　　　　　　 B．did they realized

　　　 C．the would realized　　　　　　　　　　　　　　　　 D．had they realized

30．It’s nice to see you again. What 　　　　since we last met?

　　　 A．have you done　　　　　　　　　　　　　　　　　　 B．had you done

　　　 C．have you been doing　　　　　　　　　　　　　　 D．did you do

29．--- Shall we take the 10:20 train?

　　 --- No. If we took that train, we 　　　too late.

　　　 A．arrive　　　　　　　　　 B．arrived　　　　　　　　 C．will arrive　　　　　　 D．would arrive

28．--- I had thought he would be nervous in this speech competition, but he turned out to be calm.

　　 --- He 　　　　quite enough preparation for it.

　　　 A．should do　　　　　　 B．must do　　　　　　　 C．should have done D．must have done

27．Don’t give up regardless of difficulty and failure, 　　　　you’ll never achieve your goals.

　　　 A．and　　　　　　　　　　 B．but　　　　　　　　　　　 C．or　　　　　　　　　　　 D．so

26．--- Have you got any books on English grammar? I’d like to borrow 　　　　.

　　 --- Yes, here you are. But you must return it by Friday.

　　　 A．it　　　　　　　　　　　　 B．one　　　　　　　　　　 C．some　　　　　　　　　 D．any

25．David got a higher grade in the final exam, for, you see, he made 　　　　mistakes.

　　　 A．few　　　　　　　　　　 B．fewer　　　　　　　　　 C．little　　　　　　　　　　 D．less

24．I suggested to my mother that she 　　　　a drawing club after her retirement form teaching.

　　　 A．join　　　　　　　　　　 B．joins　　　　　　　　　　 C．joined　　　　　　　　　 D．would join

23．--- Did you telephone Uncle Sam our plan for the Christmas holidays on his farm?

　　 --- Yes, he was happy about our arrival, and he eagerly asked when 　　　　.

　　　 A．has we arrived　　　　　　　　　　　　　　　　　　 B．we had arrived

　　　 C．were we arriving　　　　　　　　　　　　　　　　 D．we were arriving

22．When I got New York, I had to attend a school for students 　　　first language was not English.

　　　 A．who　　　　　　　　　　 B．which　　　　　　　　 C．whose　　　　　　　　 D．where