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题目内容
（哈尔滨电大直属学院-人文英语）
When Lily came home at 5 pm yesterday, her mother ______dinner in the kitchen.
选择一项：
A.
was cooking
B.
cooks
C.
cooked
选择一项：
A.
was cooking
B.
cooks
C.
cooked
参考答案
