We cannot figure out ____quite a number of insects, birds, and animals are dying
题型:不详难度:来源:
We cannot figure out ____quite a number of insects, birds, and animals are dying out. |
答案
C |
解析
:figure out="understand" by thinking. 理解。从句意看我不明白大量物种正在消亡,缺少状语,排除A、B项。从are dying out的时态排除D项,应该是我不明白大量物种为什么正在消亡。 【标签】名词性从句连接词 |
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