Question

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

A. that B. this C. one D. it

Answer 1

【答案】D

【解析】

句意“海伦认为用一个小时爬到山顶是困难的”。本题考查形式宾语，根据句意可知，to climb to the top of the mountain in an hour做真正的宾语，空处用it作形式宾语，故选D。