The famous singer and actress ___________ performing in our city this week.
#86043
A
am
B
is
C
are
D
be
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 The number of students in our school       about 3,000 and       them are from the countryside.
#85813
A
is; a large deal of
B
are; a number of
C
are; large deal of
D
is; a large number of
______ Kitty ______ Cathy is going with you because one of them must stay at home.
#44172
A
Not only; but also
B
Neither; nor
C
Both; and
D
Either; or