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
I saw a boy in the supermarket yesterday, reminded me of my good friend.
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A
that
B
who
C
where
D
which
A turning point of the continuously high housing price won’t appear suddenly because there must be a certain process ______ many factors lead to the change.
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A
which
B
what
C
where
D
that
The factory produces half a million pairs of shoes every year,80%________ are sold abroad.
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A
of them
B
which of
C
of which
D
of that
Leaving behind family members, these farmers are strangers to the cities ______ they work.
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A
in that
B
at which
C
where
D
which