题目内容：

The problem is too difficult to solve____my own
A.by B.in C.with D.for
答案应该选C,为什么?请说明原因,

优质解答

完整的句子是：The problem which is too difficult to solve with my own.which is too difficult to solve是定语从句,修饰the problem,所以应拿去which is too difficult to solve来看,the problem with 是一个结...