问题

Liu Fang is a company CEO now, but she ____ as a teacher in a middle school for three years

A:worked
B:has worked
C:works
D:had worked

正确答案是：

同类题型

A warm thought suddenly _______to me _______I might take the place of the hero to buy some flowers for his mother’s 60th birthday.

1.We had a party to ______ our parents’ silver wedding.[ ]

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