His English teacher is a young girl left college only last year.A. whoB. whereC. whichD.

问题补充：

His English teacher is a young girl, left college only last year.

A. who

B. where

C. which

D. as

答案：

(答案→)A. who

B. where

C. which

D. as

解析：考查定语从句，先行词是a young girl，定语从句缺少主语，用who或that引导定语从句，句意：他的英语老师是在去年大学毕业的年轻的女孩她。选A。