9.This pair of jeans————— (look) cool.10.The jeans————— (look) cool.请说明理由
问题描述：
9.This pair of jeans————— (look) cool.10.The jeans————— (look) cool.请说明理由
答
This pair of jeans looks cool.指的是这一条牛仔裤看起来很时尚,是单数主语
The jeans look cool.指的是是这一类（品牌）的牛仔裤看起来很时尚,是复数主语
另外look是描述物品给人感官上的影响,所以look均用主动形式表被动语态.