— Why didn’t you come to play football with us yesterday afternoon? — I my mother with t

— Why didn’t you come to play football with us yesterday afternoon?
— I my mother with the housework then.
A. was helping
B. helped
C. had helped
D. have been helping

(答案→)A. was helpingB. helped C. had helped D. have been helping解析：句意：昨天下午你为什么不来和我们一起踢足球呢？那时我在帮我妈妈做家务。根据then及情景可知该用过去进行时，所以选A。

对的，就是这个意思

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