3.we [ ]TV at midnight when our teacher came in.A.are wathing B.watchedC.were watchingD.wath要原因和答案昂,写清楚

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3.we [ ]TV at midnight when our teacher came in.A.are wathing B.watchedC.were watchingD.wath要原因和答案昂,写清楚
3.we [ ]TV at midnight when our teacher came in.
A.are wathing
B.watched
C.were watching
D.wath
要原因和答案昂,写清楚

3.we [ ]TV at midnight when our teacher came in.A.are wathing B.watchedC.were watchingD.wath要原因和答案昂,写清楚
C.were watching
后面的when our teacher came in中的came in进来是过去时态
前后时态一致,所以前面也应该是过去式,A和D(?)排除,当老师进来的时候,我们肯定是正在看电视,所以是过去进行式,为were watching