Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete the following exchange

Câu 9 : Linda and John are talking about alternative sources of energy. Linda: “In my opinion, water power is the best alternative source of energy.” John: “_________ .  It is expensive to build a dam.”

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Câu 10 : Mai and Long are talking about alternative sources of energy. Mai: “I think that nuclear energy is the best alternative source of energy.” Long: “_________ . It is dangerous to the environment.”

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