Was it through Mary _____ was working at
问题:
Was it through Mary _____ was working at a high school ____ you got to know Tom?
A.who; who
B.that; which
C.who; that
D.who; which
Was it through Mary _____ was working at a high school ____ you got to know Tom?
A.who; who
B.that; which
C.who; that
D.who; which