【題目】—Look! Jack is playing basketball on the playground.

—It __________ be Jack. He has gone to Beijing.

A.can'tB.mustn'tC.mightD.may

【答案】A

【解析】

句意:——看!杰克正在操場上打籃球。——不可能是杰克。他去了北京。

考查情態(tài)動詞。can't不能,表示推測有把握的否定推測;mustn't禁止; might可能; may可能。might ;may表示沒有把握的肯定回答。根據(jù)“He has gone to Beijing.”可知,上文是有把握的否定推測。根據(jù)題意,故選A。

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