WE MUST TAKE STEPS TO PRESRVE NATURAL RESOURCES; OTHERWISE THE PLANET...

câu 47: - DE THI THU TIENG ANH 12 HAY DE THI THU TIENG ANH 12
DE THI THU TIENG ANH 12 HAY DE THI THU TIENG ANH 12

Câu 47: We must take steps to presrve natural resources; otherwise the planet will be in danger.

A. Unless we to steps to presrve natural resource, the planet will be in danger.

B. If we take steps to presrve natural resources, the planet will be in danger.

C. Unless we take steps to presrve natural resources, the planet will not be in danger.

D. If we take steps to presrve natural resources, the planet would be in danger.