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Wearesurethatscientistswill

練習題2.18W

問題詳情:

Wearesurethatscientistswill

We are sure that scientists will ____a way to solve the difficult problem.

       A. put up           B. come up with       C. look up                D. come up

【回答】

B

知識點:動詞和動詞短語

題型:選擇題

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