单项选择题

By the end of that year Alice（）more than a thousand foreign stamps.

A．had collected
B．has collected
C．had been collected
D．has been collected

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单项选择题
It is important that the committee（）about the project at once.

A．be informed
B．will be informed
C．is informed
D．being informed
单项选择题
Do you think John will call his girl friend as soon as he（）in town

A．will arrive
B．arrives
C．arrived
D．had arrived
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