题目内容
3．Mr Li _____ the students'work when I entered his room．（ ）| A． | goes over | B． | went over | C． | is going over | D． | was going over |
分析 当我走进他的房间时，李老师正在检查学生的作业．
解答 答案：D
根据第二句句意：当我走进他的房间时，可以推断出第一句句意：李老师正在检查学生的作业．应该用过去进行时态，表示在过去某一时刻或某一段时间内进行或发生的动作用过去进行时，过去进行时的构成是was/were+现在分词，故选D．
点评 本题主要考查过去进行时，做此类题目，可以根据时间状语，也可以根据上下文语境，进行判断．
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