Question 9: New sources of energy have been looking for as the number of fossil fuels continues to decrease.

Question 9: New sources of energy have been looking for as the number of fossil fuels continues to decrease. A. New sources B. been looking C. fossil D. continues Knowledge: Passive sentence – Sign: “New sources of energy” is affected by the action of “look” (found) – Present perfect passive sentence: S + have/ has …

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