that引导限制性定语从句,举个例句,谢谢答:1. 先行词被all, few, little, much, every, some, no等词修饰或被the only, the very, the same, the last 等限定词修饰时。例如:These are all the pictures that I have seen.This is the very dictionary that is of great help.2. 先行词是all , much, few, little, everything,...