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题目内容
（信阳师范学院大学英语3）
When Lily came home at 5 p.m. yesterday， her mother ______ dinner in the kitchen.(本题1.0分)
A.cooked
B.was cooking
C.cooks
D.has cooked
A.cooked
B.was cooking
C.cooks
D.has cooked
参考答案