There were dirty marks on her trousers she had wiped her hands.A. whereB. whichC. whenD

问题补充：

There were dirty marks on her trousers she had wiped her hands.

A. where

B. which

C. when

D. that

答案：

(答案→)A. where

B. which

C. when

D. that

解析：此题考查定语从句。由于从句中主谓宾完整，所以只能加状语，而且前面有on her trousers表地点，所以用关系副词where引导定语从句。