Question

【题目】Helen finds ______ difficult to climb to the top of the mountain in an hour.

A. that B. this C.it

Answer 1

【答案】C

【解析】

试题分析：句意：Helen发现用一个小时爬上山顶是困难的。根据固定结构find+it+形容词+to do的结构。根据题意故选C。