关于a pair of 我练习上有这样一道题：( )-Mom,I‘d ;ike to buy a pair of shoes.-OK.But ______ before buying.A.try it on B.try them on C.try on them我原来选A,但答案是B.a pair of 不是单数吗?为什么指代时用them?
问题描述：
关于a pair of
我练习上有这样一道题：
( )-Mom,I‘d ;ike to buy a pair of shoes.
-OK.But ______ before buying.
A.try it on B.try them on C.try on them
我原来选A,但答案是B.a pair of 不是单数吗?为什么指代时用them?
答