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

 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

 --- 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

 --- 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

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

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

 --- 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

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

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

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

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

 --- 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

 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