Mark Twain worked for several years as a pilot on a steamboat, taking passengers up anddown the Mississippi, the great river ___flows from the north of the US near the Canadianborder.
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A
as
B
what
C
which
D
who
推荐题目
The manager would like to offer the position to ____ is fit for it.
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A
who
B
whomever
C
whoever
D
Whichever
It was April 29, 2011 ______ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.
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A
that
B
when
C
since
D
before
He's got himself into a dangerous situation ______he is likely to lose control.
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A
where
B
which
C
While
D
that