题目内容
18.-What were you doing when we were playing basketball yesterday afternoon?-I ______ the classroom.( )
| A. | was cleaning | B. | have cleaned | C. | will clean | D. | clean |
分析 --昨天下午当我们正在打篮球时你正在干什么?--我正在打扫教室.
解答 答案:A.根据"What were you doing when we were playing basketball yesterday afternoon?"中的"What were you doing"可知问的是过去的某个时间点正在发生的事,要用过去进行时,其构成:主语+was/were+doing.故选A.
点评 本题考查过进行时的用法,掌握过去进行时的意义即构成,根据关键词判断时态.
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