题目内容
6.Scientists have many theories about how the universe ___ into being.( )A. | came | B. | was coming | C. | had come | D. | would come |
分析 关于宇宙是如何产生的,科学家们有很多理论.
解答 答案:A.根据句意可知宇宙的产生发生在过去,选项C had come为过去的过去,因题中无过去时间作参照,故排除.故答案用一般过去时came.
点评 本题考查时态.做时态题时,首先要看句子的时间状语,如果没有时间状语,就从句子暗含的意思来确定句子的时态.

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