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39.(   )You ________ return the book now and you can keep it for another week.

   A.should         B.must         C.needn't        D.don't need

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38.(   )What way can you think of ________ the mice in the room?

   A.killing         B.kill          C.to kill         D.killed

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37.(   )Jane is a nice girl ________

   A.to work                   B.work with

   C.to work with                D.working with

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36.(   )I ________ your plan.I hope we can finish the work before the end of this year.

   A.grow up        B.agree to        C.turn over       D.fall down

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35.(   )Two days is not enough for me to finish the work.I need ________ day.

   A.a third         B.a few         C.some         D.the third

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34.(   )We ________ swim every day when we were children.

   A.like to         B.has been        C.would        D.used to

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33.(   )We had our picture ________ in the middle of the Great Wall.

   A.took          B.take          C.taking        D.taken

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32.(   )The only thing ________ we could do was to ask the police for help.

   A.which         B.who         C.that          D.whom

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31.(   )It is ________ difficult job that we can't finish it in a short time.

   A.so          B.such         C.so a         D.such a

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30.(   )Although he was very hungry, ________ he still went on working.

   A.so          B./           C.but          D.though

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