Luck has ( )new trousers.They are blue.A.a B.the C.a pair of
问题描述：
Luck has ( )new trousers.They are blue.A.a B.the C.a pair of
回答是用复数形式回答的,我有点糊涂了.
答
选C
a pair of 意为“一双”“一副”
a pair of+裤子（trousers/pants/shorts)
a pair of scissors 剪刀
a pair of shoes 鞋子
a pair of socks 袜子
等