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Onceayear,peopletakepartin“

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问题详情:

Onceayear,peopletakepartin“

Once a year, people take part in “________ Lights” activity to help save energy.

    A. Show off          B. Turn off                   C. Take off            D. Put off

【回答】

B

知识点:动词和动词短语

题型:选择题

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