I was out of town at the time,so I don’t know exactly how it ________.A.was happ
题型:不详难度:来源:
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 |
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答案
B |
解析
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。 |
举一反三
By the time Pierce comes back from the meeting,we________here for three hours.A.will be waiting | B.is waiting | C.will wait | D.will have waited |
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