If we did not use alternative sources of energy more, we would destroy the planet.

A. Using alternative sources of energy more will mean saving the planet.

B. The planet would be destroyed if we stopped using alternative sources of energy.

C. If no more alternative sources of energy are used, the planet will be destroyed.

D. Not using alternative sources of energy more will destroy the planet.

Bài tập Trắc nghiệm Tiếng Anh 10 - Unit 10: Ecotourism (Writing)