Choose the sentence that is closest in meaning to each of the following sentences.

Câu hỏi

Nam: What is the biggest environmental problem facing our country? - Lan: _________

A. Too much toxic sewage is dumped at sea.

B. All countries face environmental problems.

C. No one can help protect the environment.

D. Our country is facing the biggest environmental problem.

E11- GS- Unit 5- Practice 7