--- How many of you have solved the math problem?--- ________, the math problem is far too difficul
试题分析：
题目简介
--- How many of you have solved the math problem?--- ________, the math problem is far too difficul
题目详情
--- ________, the math problem is far too difficult for us to work out. .
答案
试题分析：句意：---你们中有多少人已经解出了这道数学题呢？---没人，这道数学题对我们来说太难。四个选项中，只有none可以回答How many的提问，故选B。考点: 考查代词的用法。