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 Don'tgoouttoplay.You

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問題詳情:

 Don'tgoouttoplay.You

 Don't go out to play. You ________ finish your homework first.

A. must B. have C. had D. had to

【回答】

A. 表示主觀的"必須"用"must"。

知識點:情態動詞

題型:選擇題