She ____ have left school, for her bike is still here.

A. can’t  B. wouldn’t C. shouldn’t  D. needn’t

 

A

句意: 她的自行車現(xiàn)在還在這兒, 她不可能已經(jīng)離開了學(xué)校。此題考查情態(tài)動(dòng)詞表推測(cè)的用法。must have+ v.-ed表示對(duì)過去情況的肯定推測(cè), 只用于肯定句。can’t have+v.-ed表示“過去不可能做了某事”; shouldn’t have+v.-ed表示過去本不該做某事而實(shí)際上做了; needn’t have+v.-ed表示過去本不必做某事但做了。

 

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