Scientists have many theories about how the universe into being.A. cameB. was comingC. ha

发布时间：2020-08-15 01:23:03

Scientists have many theories about how the universe      into being.

A. came
B. was ing

C. had e
D. would e

网友回答

(答案→)A. came
B. was ing

C. had e
D. would e
解析：考查时态的用法。宇宙是如何形成的，因为宇宙的形成这个动作已经发生，所以用一般过去时来表示已经发生的动作。
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