This is Mr. Smith. _______ help I worked out many difficult problems.
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A
whose
B
with whom
C
who
D
with whose
推荐题目
It’s helpful to put children in a situation they can see themselves differently.
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A
that
B
when
C
which
D
where
--What would you do if you ____ a million dollars?--I’d give it to the charity
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A
win
B
won
C
will win
D
is to win
---It is a long time ______ I saw you last． ---Yes．And it will be a long time ______ we see each other again．
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A
when; before
B
after; when
C
since; before
D
since; until
The fact has worried many scientists _____ the earth is becoming warmer and warmer these years.
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A
which
B
that
C
as
D
what