题目内容：

短文改错

文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加，删除或修改

注意：1.每处错误及其修改均仅限一词

2.只允许修改10处，多者（从第11处起）不计分。

Chinese tea has history of more than 4,000 years. There is main six types of tea in China,of which green tea, black tea and oolong tea are very familiar to us. Tea has become a part of everyday life for much Chinese people. It is served not only at tea house and restaurants but also at home. Whenever guests visit, it is a common custom for the host to serve for tea to them. Drinking tea can make you relaxing and refreshed. Besides, it has been discovering that tea does a lot of good to people’s healthy. No wonder tea is becoming more or more popular with people around the world.