There were dirty marks on her trousers_______she had wiped her hands.

题目

There were dirty marks on her trousers_______she had wiped her hands.
A.where B.which C.when D.that
The place _____the bridge is supposed to be built should be _____the crossriver traffic is heaviest.
A.which ;where B.at which ;which C.at which;where
D.which;in which

答案

A
定语从句（貌似是）,意思：在她裤子上擦过手的地方有脏痕迹.现行词trousers在从句中充当地点状语.所以理应选A.
C
前一个空为定语从句,place在从句中充当状语,可填写at which或where；后一个空为标语从句,从句中缺少状语,所以用where.所以选c