问题

Who taught ______ math last year?
A:they
B:their
C:them
D:theirs
B:their
C:them
D:theirs
正确答案是:
同类题型
The boy ______ his friends was playing in the street when the earthquake happened. [ ]
I ‘m sorry . I ___ your notebook at home.— That’s all right, but remember to ____ it here tomorrow.
The monkeys are running and jumping ______. [ ]
My work is ________ dangerous.
There isinsect on the ground. The child is very interested in it.