--Tosaveenerhy，weshould

問題詳情：

--To save enerhy，we should_________the electricity when we don't use it．

--I agree，you are really a greenerperson．

A．shut up     B．shut off     C．take away D．take off

【回答】

B

知識點：動詞和動詞短語

題型：選擇題