The factory____his mother works is in the east of the city.

题目

The factory____his mother works is in the east of the city.
A.that B.which C.what D.where

答案

D
The factory where/in which his mother works is in the east of the city.
先行词factory放从句中做地点状语,后半句其实是这样的：His mother works IN the factory.所以答案可以是where,也可以是in which