When Lily came home at 5 p.m.yesterday,her mother _______ dinner in the kitchen.
A .cooked
B .was cooking
C .cooks
D .has cooked A还是D、为什么?
人气：496 ℃ 时间：2019-10-08 21:18:32
解答
选B吧,前面有个具体时间五点,应该用过去进行时
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