Alternative sources of energy have environmental advantages. It’s not easy to make full use of them.

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Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

Because alternative sources of energy have environmental advantages, it’s not easy to make full use of them

Alternative sources of energy have environmental advantages, so it’s not easy to make full use of them

Despite their environmental advantages, it’s not easy to make full use of alternative sources of energy

Although alternative sources of energy have environmental advantages, but it’s not easy to make full use of them

Giải thích

Đáp án C

Kiến thức: liên từ

Giải thích:

Mệnh đề nguyên nhân kết quả: Because + clause (nguyên nhân): Bởi vì

So + clause: vì vậy

Mệnh đề nhượng bộ: Despite + N = Although + clause: Mặc dù

But + clause: nhưng

Tạm dịch: Mặc dù có nhiều lợi ích môi trường, không dễ dàng để tận dụng các nguồn năng lượng thay thế.