问题描述：
explain it
-Will 30 people _____?
-I'm afraid not.We need at least 120 more people.
A.count B.do
选什么?为什么?
-Will 30 people _____?
-I'm afraid not.We need at least 120 more people.
A.count B.do
选什么?为什么?
问题解答：
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