问题:
In the cafeteria, I saw my sister and her three friends, none of ____ I had ever seen before.
A.them
B.which
C.whom
D.those
In the cafeteria, I saw my sister and her three friends, none of ____ I had ever seen before.
A.them
B.which
C.whom
D.those
A.them
B.which
C.whom
D.those
参考答案: