【題目】The little boy has just had lunch. He ________ be hungry already.

A. must B. mustn't

C. can D. can't

【答案】D

【解析】句意:這個小男孩剛吃過午飯。他不可能已經(jīng)餓了。選項A“必須”,選項B“禁止”,選項C“能夠,可能,選項D“不能夠,不可能”,表示否定推測時,應(yīng)該使用can’t,翻譯為不可能,而mustn’t表示禁止,不允許。故選D。

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