It‘s difficult (   )foreigners(   )learn Chinese well.

问题描述:

It‘s difficult (   )foreigners(   )learn Chinese well.
A.to;for B.to'to C.for;for d.for ;to

D,固定句型 it is difficult to do sth 或者 it is difficult for sb to do sth.老师讲到这个单词的时候应该讲过吧.
对外国人来说,学好汉语是很难的.