Đề thi cuối kì 2 Tiếng Anh 10 Global Success có đáp án - Đề 8

You should _________ electric devices when not in use to save electricity. A. turn down B. turn on C. turn off D. turn up

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You should _________ electric devices when not in use to save electricity. 

turn down

turn on

turn off

turn up

Giải thích

Choose C