—This camera is very similar that one.
—Yes. I have some trouble their differences.
A. as; telling
B. to; telling
C. to; to tell
D. with; to tell
网友回答
A. as; telling
(答案→)B. to; telling
C. to; to tell
D. with; to tell
解析：此题重点考查两个短语结构。Be similar to…与…相似和have trouble in doing sth表示做某事有困难。