The USA is a large country in ________ many different dialects are spoken.
#93665
A
that
B
which
C
where
D
it
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______could be judged from her eyes that she was terribly sorry for what she ______.
#95119
A
It; had done
B
That；did
C
As；did
D
As；had done
_________ no doubt that a green campus plays an important role in the growth of students, both physically and mentally.
#92245
A
It is
B
There has
C
There is
D
It has
It’s quite a time _____ Liu Xiang was injured in the foot, but we are sure it won’t be long _____ he returns to the track.
#93864
A
after; when
B
before; since
C
that; when
D
since; before
It’s the first time that he has been to Australia ,______?
#94116
A
isn’t he
B
has’t he
C
isn’t it
D
hasn’t it
Scientists say it may be five or six years _____ it is possible to test this medicine to human patients.
#92420
A
since
B
after
C
before
D
when