(2013·高考湖南卷)The university estimates that living expenses for international students________around $8,450 a year，which________a burden for some of them.
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A
are；is
B
are；are
C
is；are
D
is；is
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Four days __________ enough for us. We still need ________ two days.
#43509
A
isn’t, another
B
aren’t, another
C
isn’t, more
D
aren’t, more
Nobody in our class but Tom and I ___ that our monitor is going abroad for further education.
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A
know
B
am to know
C
have known
D
knows
Mike, together with his parents, ________ going to the countryside to see his grandparents next week.
#86080
A
is
B
are
C
was
D
will