问题补充:
—Do you know the girl is standing the tree?
— Yes, she is my friend, Zhang Ying.
A. that, in the front of
B. whom , under
C. who, in front of
D. which, behind
答案:
A. that, in the front of
B. whom , under
(答案→)C. who, in front of
D. which, behind
解析:句意:你认识那个站在树前面的女孩吗?是的,她是我的朋友,张英。in the front of在....的前面(内部),in front of在……的前面(外部),under在……下,behind在……后;定语从句中who/whom/that指代人,that/which指代物,who做主语和宾语,whom做宾语;先行词the girl,在定语从句中做主语,引导词国who或that,女孩站在树的外部的前面,故选C.