单选题When you leave, please turn off the light ______ energy.AsaveBsavingCsavedDto save
单选题
When you leave, please turn off the light ______ energy.
A
save
B
saving
C
saved
D
to save
参考解析
解析：
句意：当你离开时，请关灯以便节省能源。本题考查非谓语动词的用法。动词不定式在此作状语，表目的。因此选D项。
句意：当你离开时，请关灯以便节省能源。本题考查非谓语动词的用法。动词不定式在此作状语，表目的。因此选D项。
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