People in Australia are so environmentally-friendly that they create the greenest country in the world.

Câu hỏi:

People in Australia are so environmentally-friendly that they create the greenest country in the world.

A.
Australia is the greenest country in the world though the people are environmentally friendly.

B.
Australia is the greenest country in the world because the people are environmentally friendly.

C.
Australia is the greenest country in the world while the people are environmentally-friendly.

D.
Australia is the greenest country in the world if the people are environmentally friendly.

Đáp án đúng: B