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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