听力原文：

G: How was your weekend?

B: It was great! I went to a Chinese tea culture festival.

G: Well, China is famous for tea, both in the past and now. Where are tea plants grown?

B: Tea plants are grown on the sides of mountains.

G: How is tea produced? 

B: When the leaves are ready, they are picked by hand and then are sent to tea factories for processing. And then the tea is sent to many different countries and places around China. 

G: Now tea is the most popular drink in the world. Tea is good for both health and business.

B: I really understand Chinese tea culture.

Question: Where are tea plants grown?

参考答案: 

They are grown on the sides of mountains.