Why must we save fossil fuels?

A.A. because the amount of fossil fuels is limited

B.B. because the amount of fossil fuels is expensive

C.C. because the amount of fossil fuels is new

D.D. because the amount of fossil fuels is cheap

Đáp án và lời giải

Đáp án:A

Lời giải:

Dẫn chứng: The amount of fossil fuels in the world is limited. Therefore, we must save it, and at the same time we must find new sources of energy.

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