问题
选择题
Don't forget _____ the computer when you don't use it. [ ]
A. turn off
B. turn on
C. to turn on
D. to turn off
答案
答案：D
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Don't forget _____ the computer when you don't use it. [ ]
A. turn off
B. turn on
C. to turn on
D. to turn off
答案：D