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International situation is currently undergoing great changes ________ UNESCO plays an irreplaceable role in promoting international cooperation.
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A
which
B
what
C
where
D
that
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He still remembers the place ______ we visited last year?
#76094
A
that
B
where
C
when
D
in which
I’ve seen the man        dog bit you.
#77174
A
who
B
whose
C
whom
D
that
She still remembers the things and persons          they talked about last year.
#77509
A
who
B
whom
C
which
D
that
______is known to us all, only the theory ______ on practice can be practical.
#76757
A
Which; base
B
Which; based
C
As; based
D
As; basing
Bungee jumping is a sport ________ a person makes a vertical jump from a high platform  with a rubber cord tied to their ankles so that they bounce.
#78362
A
What
B
That
C
Which
D
Where