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It was after he went to college __ he realized the importance of forming a reading habit.

    A. that        B. when       C. since       D. as

__ his telephone number or e-mail address, she had some difficulty getting in touch with John.

    A. Not knowing    B. Not to know   C. Not known    D. Not having known

It is said that they __ $ 200, 000 for the house up to now.

    A. will offer      B. are offering    C. offer       D. have offered

— Can you __ what these characters on the rock are?

    — Not really.

    A. carry out      B. make out     C. come out     D. go out

— Oh, my cat is really fat.

    — You __ have given her so much food.

    A. wouldn't      B. mustn't      C. couldn't     D. shouldn't

I didn't see your sister at the party. If she __, she would have met my brother.

    A. has come      B. had come    C. did come     D. came

 — How come you are here?

    — I came here for nothing else but to see you ____.

    A. by chance     B. in addition    C. at random    D. on purpose

__ is not possible that Bob can win the first prize in the competition.

    A. This       B. That      C. It       D. What

— I'm leaving tomorrow.

    — Oh, what a pity! I won't be able to see you off. I __ a tele-conference the whole morning.

    A. have        B. am having    C. will be having  D. will have had

 With the rapid development of the city, he can hardly find the place __ he used to play with his childhood friends.

    A. where       B. when       C. there       D. which