He is such a good teacher we all respect.A. thatB. soC. asD. who

问题补充：

He is such a good teacher we all respect.

A. that

B. so

C. as

D. who

答案：

A. that

B. so

(答案→)C. as

D. who

解析：考查定语从句，先行词是such a good teacher，用as引导定语从句，他是我们都很尊敬的这么一个好老师。选C。