题目内容
He is one of the students, who, I’m sure, always do _____best.
- A.his
- B.my
- C.one’s
- D.their
D
who always do their best是一个非限定性定语从句,修饰students,I’m sure是插入语。
who always do their best是一个非限定性定语从句,修饰students,I’m sure是插入语。
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