摘要：We cannot figure out quite a number of insects, birds, and animals are dying out.A. that B. as C. why D. when[解析]C: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.
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We cannot figure out _______ quite a number of insects, birds, and animals are dying out.?
A. that B. as?
C. why D. when?
查看习题详情和答案>>We cannot figure out____________quite a number of insects, birds, and animals are dying out.
A. that B. as C. why D. when
查看习题详情和答案>>We cannot figure out_______quite a number of insects,birds,and animals are dying out.
A.that B.as C.why D.when
查看习题详情和答案>>