单项选择题

I ______ him the Christmas gift by mail because he came home during the Christmas holidays.

A．ought to have sent
B．couldn’t have sent
C．must have sent
D．needn’t have sent
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单项选择题
It has been proposed that we ______ our decision until the next meeting.
A．delayed
B．delay
C．can delay
D．are to delay
单项选择题
I still remember the day I first met her, she ______.
A．had long hair
B．has long hairs
C．had long hairs
D．has long hair
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