Mary_____ yet.I'm waiting for her.[ ]A. came backB. has come backC. hasn't come backD. was coming back-初中英语-n多题

◎ 题干

Mary _____ yet.I'm waiting for her.

[ ]

A. came back
B. has come back
C. hasn't come back
D. was coming back

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◎ 解析

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◎ 知识点

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