_____ sleep too late. It's bad for your_爱下问搜题

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问题选择题

_____ sleep too late. It's bad for your health.

A. Do
B. not
C. Don't
D. Please not

答案

答案：C

单项选择题

Your name and（）sign.

A.call

B.calling

C.called

D.calling at

填空题

当前存在的学制主要有______、______、______三种形态。