Dalian is a beautiful city. It is near the sea. The roads are clean. There are many trees and flowers at the side of the road. The sea is blue. Many people like swimming in the sea. Do you want to go there?

1.Dalian is a ________ city.

A clean

B beautiful

C blue

D

解析：选B。B细节理解题。根据Dalian is a beautiful city.可知大连是座美丽的城市，故选B。

2.At the side of the road, there are many ________.

A trees

B seas

C birds

D

解析：选A。A细节理解题。根据There are many trees and flowers at the side of the road.可知路边有许多树和花，故选A。

3.What is the color of the sea?

A Yellow.

B White.

C Blue.

D

解析：选C。C细节理解题。根据The sea is blue.可知大海是蓝色的，故选C。

4.Many people enjoy ________ in the sea.

A surfing

B fishing

C swimming

D

解析：选C。C细节理解题。Many people like swimming in the sea.可知很多人喜欢在海里游泳，故选C。