将下列句子改成定语从句

题目

将下列句子改成定语从句
1.Hangzhou is a famous city in china .many people come to buy tea in that city.
2.She got so angry.I don’tknow the reason.
3.The old man saw some Germans taking apart the Amber Room and removing it.You are talking to an old man.
4.Xi’an is one of the few cities with city walls.Its walls remain as good as before.

答案

Hangzhou is a famous city where many people come to buy tea in China.
I don't know the reason why she got so angry.
You are talking to an old man who saw some Germans taking apart the Amber Room and removing it.
Xi'an is one of the few cities with city walls which remain as good as before.
肯定没错.