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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单项选择题
Two TV cameras （） eyes of a mechanical man.

A．are served as
B．serve as
C．will be serve as
D．were serve as
单项选择题
As soon as children were （） their mother got them out of bed and into the bathroom.

A．woke
B．awoke
C．awake
D．waken
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