【题目】What difficulty _____you have ______the problem?
A. you think; solving B. do you think; to solve
C. do you think; solving D. you think; to solve
在线课程【答案】C
【解析】
考查插入语和动词短语。句中do you think是插入语，动词短语have difficulty in doing sth做某事有困难。句意：你认为他解决这个问题有什么困难？AD项语序错误，B项第二空应该使用动名词形式。故C项正确。