There is ( ) A.key B. a set of key C a set of keys D. keys 选哪个？为什么

显示全部楼层 · 2012-10-31 18:14:13

选C。谓语动词的单复数根据set来定，前面的谓语动词是单数is，所以用 a set of（一串），一串钥匙肯定不止一片啊，所以后面用复数。就像：There is a pair of shoes.
There are two pairs of shoes. 望采纳，不懂请追问》》》...

千问 · 2012-10-31 18:14:13

选Ca set of keys 是一串钥匙的意思前面是单数is所以后边也要是单数，可以填a key 、a set of keys a set of 是词组根据set来定，可以是a set 、 two sets等等，与后面的keys无关 set of后面都跟复数比如说There is a key. There are two...

千问 · 2012-10-31 18:14:13

答案C a set of keysthere is 单数，d选项排除a选项应该是a key，没有冠词aset of 固定搭配后跟复数如果是sets of则应该是there are...

There is ( ) A.key B. a set of key C a set of keys D. keys 选哪个？ 为什么

There is ( ) A.key B. a set of key C a set of keys D. keys 选哪个？为什么