【題目】My umbrella is gone. Who ______________ have taken it by mistake?

A.couldB.shouldC.wouldD.must

【答案】A

【解析】

考查情態(tài)動(dòng)詞+have done的用法。句意：我的傘不見了。誰會(huì)把它拿錯(cuò)了呢？A. could (have done) 表示對(duì)過去發(fā)生的事情的可能性推測(cè)；B. should (have done) 表示本應(yīng)當(dāng)做某事，卻沒做；C. would (have done) 用于虛擬語氣；D. must (have done)表示對(duì)過去的肯定推測(cè)。根據(jù)語境可知，此處表示對(duì)過去可能性的推測(cè)，用于疑問句，應(yīng)使用could (have done)。故選A。

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