题目内容
9.When he _______ TV,his mother came in.( )A. | watches | B. | is watching | C. | watched | D. | was watching |
分析 当他正在看电视时,妈妈进来了.
解答 分析句中的两个动作可知,一个动作发生时,另一个动作正在进行;再根据his mother came in是过去时,故用过去进行时态,故选D.
点评 过去进行时态可表示一个动作发生时,另一个动作正在进行;也可表示两个动作同时进行,学生做题时要注重分析.
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