—When did you get to know the professor over there? —It was at the work shop we did reserch to gether two years ago.
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A
that
B
there
C
which
D
where
推荐题目
There is no doubt，in my opinion， ________matters is not the speed，but the quality of the product.
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A
that
B
which
C
what that
D
that what
----Have you seen Mr. Black these days, Jack? ----Yes, I met him when I ________ in the street yesterday.
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A
walked
B
was walking
C
have walked
D
is walking
My parents used ________they had to get a new car for my brother.
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A
which
B
all what
C
what
D
不填
The exciting news has spread all over the world______the satellite around the moon succeeded in returning to the earth.
#73659
A
which
B
that
C
whether
D
what