【题目】The difficulty which we had ______ with the local people has been removed.
A. communication B. communicated
C. communicating D. to communicate
在线课程【答案】C
【解析】
试题分析：我们和当地人交流困难的问题已经解决了。题中涉及到固定搭配“have difficulty (in)doing sth”做某事有困难的意思。因此答案选C。题中还涉及到which引导的定语从句。