问题
选择题
-How much difficulty did you have_______ this problem?
-_______. It's quite easy.
A．to solve, Nothing
B．solving; None
C．to solve, None
D．solving; Nothing
答案
答案：B
题目分析：句意：你解决这个问题有多大的困难？没有。这很容易。Have difficulty doing sth做某事有困难，none没有。所以选B。