单项选择题

Martin asked his professor for some comments on his report but it was ______.

A．turned down
B．turned off
C．turned up
D．turned on
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单项选择题
There is a direct flight at 3: 00 or a flight at 7: 30 in the morning that ______ in Los Angeles.
A．stops by
B．stops in
C．stops over
D．stops up
单项选择题
The remedies proposed for dealing with the situation ore only ______ promises for action for the future.
A．courageous
B．colossal
C．vague
D．elaborate
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