none of the____came to help the victim of robbery
问题描述:
none of the____came to help the victim of robbery
A.lookers-on B.lookers-ons C.looker-ons D.on-lookers
我选D错了?答案应该选什么?为什么呢?还有连字符应该怎么样?
答
应该选C例如照顾婴儿的保姆:baby-site 复数就是baby-sites