Tom had no trouble at all the office building according to the note written by Mr. Smith.
A. to find
B. found
C. finding
D. find
网友回答
A. to find
B. found
(答案→)C. finding
D. find
解析：句意：根据史密斯先生的留言，汤姆找到这座办公大楼一点困难也没有。Have no trouble doing sth.是固定用法，意思是做某事毫不费力，选C。