Đề thi chính thức Tiếng Anh vào 10 năm 2020-2021 (Đề 21)
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Before you leave the room, please ______ all the lights to save energy.

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Choose the correct answer to each of the following questions. Write your answer (A, B, C, or D) on your answer sheet.

Before you leave the room, please ______ all the lights to save energy.

look after

turn off

put on

take off

Giải thích

Đáp án B