题目内容
【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
【答案】A
【解析】句意:那两个女孩儿像极了,外人难以分清她们谁是谁。此处it是形式宾语,真正的宾语是不定式短语 to tell one from the other。
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