问题描述：
----how many staff are there in the office? ----there are_____. you can lock the door now.
----how many staff are there in the office?
----there are_____. you can lock the door now.
A a few B little C much D none
----how many staff are there in the office?
----there are_____. you can lock the door now.
A a few B little C much D none
问题解答：
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