题目内容
I was out of town at the time,so I don’t know exactly how it ________.
| A.was happening | B.happened |
| C.happens | D.has happened |
B
由前半句可知“事情”发生在过去,而不强调对现在的影响,故用一般过去时。
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题目内容
| A.was happening | B.happened |
| C.happens | D.has happened |