单项选择题

There are eight tips in Dr. Roger's lecture on sleep, and one of them is: ______ to bed early unless you think it is necessary.

A. doesn't go
B. not to go
C. not going
D. don't go
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单项选择题
The news was a terrible blow to her, but she will ______ the shock soon.
A. get out
B. get through
C. get off
D. get over
单项选择题
Words ______ me when I wanted to express my thanks to him.
A. failed
B. left
C. discouraged
D. disappointed
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