问题补充:
-- Could you tell me something about the boy who helped you just now?
-- Sorry, I know nothing about him. We are.
A. friends
B. neighbors
C. classmates
D. strangers
答案:
A. friends
B. neighbors
C. classmates
(答案→)D. strangers
解析:本题的含义是我对他一无所知,那么我们应该是陌生人,stranger是陌生人的意思,故本题选D。