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14.Don't be afraid of asking for information ________ it is needed.

A.when           B.after            C.although          D.unless

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13.I want to know ________ do to help my neighbor.

A.what I can           B.what can I           C.how I can        D.how can I

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12.It's important ________ the piano well.

A.of him to play     B.for him to play     C.of him playing     D.for him playing

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11.This kind of food ________ cool,clean and dry according to the instruction.

A.should be carried   B.must be put       C.should be placed    D.must be kept

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10.--Have you mended your shoes,Bob?

--Yes,I ________ them twenty minutes ago.

A.have mended      B.mend           C.had mended       D.mended

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9.With the help of the Internet,news can ________ every comer of the world.

A.arrive           B.reach           C.go              D.get

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8.--Do you know ________ lady in blue?

--Yes.She is a teacher of a university.

A.the              B.a              C.an              D.不填

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7.It is ________ nice of you to say so.

A.truly            B.true            C.really            D.real

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6.The experts think that India's population may be ________ than China's ________ 2020.

A.much;by           B.more;in        C.larger;by        D.larger;on

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5.It was snowing hard ________ we had to stay at home and watch TV.

A.that            B.so             C.but             D.because

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