this pair of glasses是复数还是单数
this pair of glasses是复数还是单数
this pair of shoes 是单数还是复数?
this pair of trousers作主语是单数还是复数 This pair of trousers____(be
1.是This is a pair of glasses 还是They a pair of glasses
pair是单数还是复数?
three glasses of water谓语动词是单数还是复数?
a pair of glass是单数还是复数?
a pair of pants 是单数还是复数
a pair of是单数还是复数概念?
this pair of glasses may be is his 还是 this pair of glasses m
This is a pair of glasses 变为复数
The pair of glasses ___ not for Lucy.用单数还是复数形式?为什么?象“裤子”这类的呢