He is the only one of the students in our grade who ___ a winner of scholarship for three years.
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A
is
B
are
C
have been
D
has been
推荐题目
China’s population is expected to increase to about 1.5 billion, ____ it will start to decline slowly.
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A
after that
B
since when
C
on which
D
after which
I can never forget the days _____ we worked together and the days ______ we spent happily together.
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A
when; which
B
which; when
C
for which; that
D
on which; when
Guilin is the most beautiful place _____people all over the world want to visit.
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A
where
B
which
C
what
D
that
In the dark street, there wasn’t a single person _________ she could turn for help.
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A
that
B
who
C
from whom
D
to whom