【題目】Thanks for your useful advice; otherwise I ______ such rapid progress.

A. didn’t make B. couldn’t have made

C. hadn’t made D. shouldn’t have made

【答案】B

【解析】考查含情態(tài)動(dòng)詞的推測(cè)。句意：多虧了你有用的建議，要不然的話我不可能取得這么大的進(jìn)步。couldn’t have done不可能已經(jīng)做了某事，表示對(duì)過(guò)去事情有把握的否定推測(cè)。故選B。

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