问题
Was it through Li Ning, ________working at a high school, ________you got to know Wangke?
A:who I think it was; who
B:that I think were; which
C:who I think was; that
D:I think who was; which
B:that I think were; which
C:who I think was; that
D:I think who was; which
正确答案是：
