Question

【题目】The two girls are so alike that strangers find ___________ difficult to tell one from the other.

A. it B. them C. her D. that

Answer 1

【答案】A

【解析】本句中find的宾语是to tell one from the other，放在了句尾，因此find后缺少形式宾语，只有it可作形式宾语，故选用it。