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)
#85564
A
are；is
B
are；are
C
is；are
D
is；is
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In those days John with his classmates _____ kept busy preparing for the exam.
#86061
A
is
B
are
C
was
D
were
Two-thirds of the land ________ covered with green grass and the rest _______ covered with pine trees.
#85976
A
is; is
B
is; are
C
are; is
D
are; are
The number of the students in our school _____ than that in theirs.
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A
is much more
B
are much more
C
is much larger
D
are much larger
The number of the students in our school _________ 600, but a number of students _________ living in the school.
#44125
A
is, like
B
is, likes
C
are , like
D
are, likes