分类：教育/科学-外语学习
问题：将两个句子合并为定语从句 
回答：1.Hangzhoou is a famous city in China where many people come to buy tea.2.Xi'an is one of the few cities with city walls whose walls remain as good as before.另。在定语从句中whose+名词=the+名词+of+which/whom/所以，那个句子中只能填of which补充题1.A  非限制性定语从句，缺少主语只能用which或者as，而as又含有“正如，好像”的含义，本句中不包含这样的含义。如果用as，整个句子就应该是He was from Africa, as we can see from his skin.2.C做表语关系代词只能用that