--This wall of air is an effective answer to the problem and it work. --But it is a question to put such a wall of air around the statue. A.may B.must C.should D.could 【查看更多】

 

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——This wall of air is an effective answer to the problem and it ____ work.

    ——But it is a question to put such a wall of air around the statue.

A、may   B、must  C、should        D、could

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30. —This wall of air is an effective answer to the problem and it ______ work.

   —But it is a question to put such a wall of air around the statue.

A.may                                 B. must                 C. should                      D. Could

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——This wall of air is an effective answer to the problem and it ____ work.

        ——But it is a question to put such a wall of air around the statue.

A、may  B、must C、should   D、could

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—This wall of air is an effective answer to the problem  and it ____ work.

    —But it is a question to put such a wall of air around the statue.

   A. may     B. must     C. should     D. could

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30. —This wall of air is an effective answer to the problem and it ______ work.
—But it is a question to put such a wall of air around the statue.

A．mayB．mustC．shouldD．Could

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