题目内容
7.-Why didn't you go to play football with us yesterday afternoon?-I _____my mother with the housework then.( )
| A. | helped | B. | was helping | ||
| C. | had helped | D. | have been helping |
分析 -你为什么昨天下午不和我们去踢足球呢?
-那时候我正在帮我的妈妈做家务呢.
解答 答案:B 根据then 和yesterday afternoon可知,动作发生的时间是过去的比较具体的时间,应该用过去进行时态.变过去某个时间点正在进行的动作,其构成形式是助动词"was/were+动词-ing".故选B.
点评 判断动词的时态,要通过所给的时间状语、提示词或语境去判断动词存在的状态.
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