This nationwide smog should serve as a reminder to all, indicating a high time that we ______ on what we've done to the environment.

A. have reflectedB. are reflecting C. will reflectD. reflected

 

D

【解析】

試題分析:句意：這次全國范圍的大霧應(yīng)該對(duì)所有人是一個(gè)警示，這表明到了我們?cè)摲此嘉覀儗?duì)環(huán)境的所作所為的時(shí)候了。固定句型it is high time that +從句（一般過去時(shí)或should +v原形），“到了做某事的時(shí)候了”，故答案選D。

考點(diǎn)：考查動(dòng)詞時(shí)態(tài)。

 

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