问题
In nature some animals actively defend the area_____________they depend for the resources.
A:in which
B:on which
C:which
D:Where
B:on which
C:which
D:Where
正确答案是：
同类题型
Alien had to call a taxi because the box was _____ to carry all the way home．
They build a bridge of friendship ______ the mainland and Taiwan Island. [ ]
Sally took a photo of her friends while they_____computer games.
The students often________ games after class. They ______ volleyball over there now.