Question

【题目】选择所给的句子，完成对话，选择正确的答案。

A. What are the white parts?

B. The Earth was clean many years ago.

C. But today, people are polluting(污染) the land, the water and the air.

D. We can’t do this again.

E. The blue parts are sea.

A: Look at the photo of the Earth. 1. ___________

B: Are they land?

A: Yes, they are. Well done. What are the green parts?

B: They are clouds. 2._____________

A: Yes, you are right. 3.________________

4.______________________

B:5. ____________ We must protect the Earth.

Answer 1

【答案】1.A 2.E 3.B 4.C 5.D

【解析】

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