问题
Have you ever seen any trees ________ leaves were black because of the polluted air?
A:whose
B:that
C:which
D:who
B:that
C:which
D:who
正确答案是：
同类题型
It’s important to give the babysitter an emergency phone number ___ the children get hurt or sick
I haven’t been to an aquarium.–________.
In our dormitory, we are all friendly to each other.It makes us ____like a big family.
Their youngest girl is at the stage ______ she can say a single word but not a full sentence