单项选择题

He is used to flying by air and on no occasion ______ frightened.

A．he has ever felt
B．be ever feels
C．ever does he feel
D．has he ever felt
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单项选择题
I am rather concerned ______ her, for I haven' t heard from her since last winter.
A．of
B．at
C．with
D．about
单项选择题
Going to bed can cure almost half of one's ills, and, getting up, the other half.
A．生病都只要一半时间躺在床上，一半时间起来走动，即痊愈了。
B．卧床休息，差不多能治好一半病；起床走动，即治愈另一半。
C．躺在床上休息够了之后，你的一半病已经治好；站起来多跑几圈，你就应该痊愈了。
D．一半病要靠改善卧床的条件，而另外那一半病则需要靠站起来多走动。
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