单项选择题

The disappearance of her paper has never been ______.

A. counted for
B. looked up
C. accounted for
D. checked up
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单项选择题
—I'm sorry that John is out. —Please ask him to call me as soon as he ______.
A. returned
B. returns
C. will return
D. has returned
单项选择题
Bit by bit, a child makes the necessary changes to make his language ______.
A. as other people
B. as other people's
C. like other people
D. like other people's
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