问题
选择题
"Don't _____ on the computer. It's time for class." Says my teacher. [ ]
A. play
B. playing
C. be playing
D. is playing
答案
答案：A
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"Don't _____ on the computer. It's time for class." Says my teacher. [ ]
A. play
B. playing
C. be playing
D. is playing
答案：A