单项选择题

I've got a very ______ schedule today so I can't see you until tomorrow.

A．serious
B．big
C．tough
D．tight
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单项选择题
His parents died when he was young so he was ______ by his aunt.
A．bred
B．fed up
C．brought up
D．grown up
单项选择题
Susan, you are so lazy. This job ______ hours ago.
A．should have finished
B．could have finished
C．ought to have been finished
D．must have finished
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