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32.  ---Did you finish your homework yet?

        ---Yeah. We turned them in, and now they ________.

        A. are grading         B. are graded      C. are being graded     D. have graded

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31.  ---As a result of the heavy snow, the highway has been closed up until further____.

        ---Does that mean we can do nothing but wait?

        A. news            B. information     C. notice             D. message

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30.  Without proper lessons, you could _____ a lot of bad habits when playing the piano.

A. put up            B. draw up       C. pick up          D. grow up

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29.  ---Will you tell the secret to Tom? 

    ---No way!  ________ I’m asked to.

A. Unless           B. When       C. Until             D. Even though

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28.It is hard for me to imagine what I would be doing today if I ___________in love, at the     age of seven, with the Melinda Cox in my hometown.

    A. wouldn’t have fallen                B. had not fallen      

    C. should fall                       D. were to fall

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27. With an online course Lynn has over 300, 000 students all over China ________her class     through the Internet.

A. attending          B. attended       C. attend             D. are attending

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26.There is a real danger ______ the U. S will not keep its position on the world   economic     stage.

A. where            B. that          C. which             D. one

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25. The trees in that thick forest are so close together that there is hardly any room to move _______them.

    A. between          B. in         C. among          D. across

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24.Please keep ______ secret that he has decided to give up his present position.

     A. one            B. this          C. it                D. that 

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23.---Helen, will you be at the party tonight?

---Yes, but I really     as I have so much homework to do.

A.can’t            B.shouldn’t      C.mustn’t          D.won’t

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