pair是单数还是复数?
pair是单数还是复数?
this pair of shoes 是单数还是复数?
this pair of glasses是复数还是单数
a pair of glass是单数还是复数?
a pair of_________(shoes,trousers.) 后面是复数还是单数?
a pair of pants 是单数还是复数
a pair of是单数还是复数概念?
pair 后面跟单数还是复数?
this pair of trousers作主语是单数还是复数 This pair of trousers____(be
the pair of jeans后的谓语动词应用是单数还是复数?
请问a pair of在句中的谓语动词是用单数还是复数?
英语老师来.the pair of shoes接下来的谓语是单数还是复数?