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Wecanhardlybelievesuchayoungboy

練習題3.31W

問題詳情:

Wecanhardlybelievesuchayoungboy

We can hardly believe such a young boy_____travel around the world all by himself.

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

【回答】

C

知識點:情態動詞

題型:選擇題

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