Using a telescope we could see that something .A. is happeningB. happenedC. would happenD.

发布时间：2020-08-16 21:11:04

Using a telescope we could see that something     .
A. is happening
B. happened
C. would happen
D. was happening

网友回答

A. is happening
B. happened
C. would happen
(答案→)D. was happening
解析：考查时态。根据句意：使用望远镜，我们能看见一些事情正在发生。因为只有正在发生的事情，我才能看见的，两者是同时发生的。
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