--What’s your problem?-I have troublethese sentences in English. A.say B.to say C.sayin

问题补充：

--What’s your problem?

---I have troublethese sentences in English.

A.say B.to say C.saying

答案：

解析：考查固定结构。have trouble (in) doing sth,做某事有困难，in可省略。所以选C。