We have heard of many cases _______ some citizens ，especially some famous people， have suffered because personal information had been leaked.
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A
why
B
which
C
as
D
where
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There are, of course, bad teachers as well as ________.
#4571
A
good one
B
some good
C
good ones
D
those good
Jackson who was famous for his high energy performances _________ during the Democratic National Committee benefit concert, A Night at the Apollo once.
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A
was performed
B
performed
C
performing
D
was performing
._____the wind and waves we were going in the direction of the whirlpool,and nothing could save us.
#4785
A
By
B
At
C
To
D
With