Question

I know you have eaten all sorts of junk food your mother and I probably _____ you have.

A．shouldn’t let

B．can’t let

C．couldn’t have let

D．shouldn’t have let

Answer 1

D

解析試題分析:考查情態(tài)動(dòng)詞用法。根據(jù)語(yǔ)境可知此句是對(duì)過(guò)去事情的推測(cè)，排除A、B選項(xiàng)，而couldn’t have done意思是“不可能做過(guò)某事”，而shouldn’t have done意思是“本不應(yīng)該做某事（但是做了）”，所以D選項(xiàng)正確。句意：我知道你已經(jīng)吃完了各種我和你媽媽本不該讓你吃的垃圾食品。
考點(diǎn)：考查情態(tài)動(dòng)詞用法。