单项选择题

When I came into the classroom, the teacher （） something on the blackboard.

A．is writing
B．was writing
C．wrote

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单项选择题
We have studied for two hours. Let's stop （）.

A．have a rest
B．to have a rest
C．having a rest
单项选择题
Please give me （）

A．two cups of milks
B．two cup of milk
C．two cups of milk
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