Wecan'tfigureout________quitea

发布时间：2020-07-27 20:21:35

We can't figure out ________ quite a number of insects,birds and animals are dying out．A.thatB.asC.whyD.when

网友回答

C解析why引导从句作figure out的宾语。指导：宾语从句的引导词要根据句意判断。
以上问题属网友观点，不代表本站立场，仅供参考！