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问题: 英语题目

Such problem ___ that is hard ____
A like to sovle
B as to be solved
C as to solve
D like to be solved
选择一个正确的~并说明原因

解答:

对不起..第一空是我错了..楼下的学长的解释正确...
第二空保留意见

to be solved 原来句子是solve such problem ,problem做主语了solve也要用被动语态.