The university estimates that living expenses for international students________around $8,450 a year，which________a burden for some of them. (2013·湖南，33)
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A
are；is
B
are；are
C
is；are
D
is；is
推荐题目
While building a tunnel through the mountain, _______.
#86096
A
an underground lake was discovered
B
there was an underground lake discovered
C
a lake was discovered underground
D
the workers discovered an underground lake
William, as well as his friends，________invited to my birthday party the day before yesterday.
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A
is
B
was
C
are
D
were
The number of pandas(熊猫) becoming .
#44138
A
is more and more
B
are less and less
C
is smaller and smaller
D
are fewer and fewer