—Couldyoupleasesweepthefloor,Tom?—Sorry,Mum.I
問題詳情:
—Could you please sweep the floor, Tom?
—Sorry, Mum. I ________. I'm doing my homework.
A.can't B.mustn't C.needn't D.may not
【回答】
A 點撥:句意:——湯姆,你能掃掃地嗎?——抱歉,媽媽。我________。我正在做作業。A.不能;B.不許;C.沒必要;D.可能不。根據句意可知選A。
知識點:情態動詞
題型:選擇題
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