Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

Câu hỏi

Global warming is the rise in the _________temperature of the earth's atmosphere.

A. average

B. normal

C. casual

D. polluted

Đáp án
A. average

Câu hỏi thuộc Bài tập:

Ms. Dung Purple - Unit 9: Protecting the Environment - Vocabulary