we are worried about is that air pollution is becoming much heavier in Han Dan.A. ItB. Wha

发布时间：2020-08-17 08:05:19

    we are worried about is that air pollution is being much heavier in Han Dan.
A. It
B. What
C. Why
D. Which

网友回答

A. It
(答案→)B. What
C. Why
D. Which
解析：句意：我们担心的事情是邯郸的空气污染越来越严重。这里is前面是主语从句，而主语从句中缺少宾语，用what引导主语从句，it是做形式主语，why为什么，which哪个，都不符合句意。选B。
以上问题属网友观点，不代表本站立场，仅供参考！