Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 có đáp án (Đề 1)

The advantage of harnessing the power of the tides and of sunlight to generate electricity is that they ________. A. do not pollute the environment B. are more reliable C. are more adaptabl

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The advantage of harnessing the power of the tides and of sunlight to generate electricity is that they ________.

do not pollute the environment

are more reliable

are more adaptable

do not require attention

Giải thích

Chọn đáp án A