Mark the letter A, B, C, or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions.
Câu 1.a. Tom: What about switching all the energy to solar or wind power?
b. Jack: Let's do our geography homework now. What can we do to make our city greener?
c. Jack: I don't think so because that would be very expensive.
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