Tom is going to buy a new pair ______shoes
问题描述:
Tom is going to buy a new pair ______shoes
答
of ,a pair of ,固定词组
答
空格内填of句子意思为Tom准备买双新鞋
答
填of a pair of 一双,一副(是固定词组) 句意是:汤姆准备买双新鞋