问题
选择题
Don’t forget _____ when you leave the classroom.
A. close the door
B. to close the door
C. turn off the door
D. to turn off the door
答案
答案：B
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Don’t forget _____ when you leave the classroom.
A. close the door
B. to close the door
C. turn off the door
D. to turn off the door
答案：B