The population, one third of which___ farmer workers, __increasing very fast.
#85922
A
is; are
B
is; is
C
are; is
D
are; are
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Half of the class ________ done most of the work. The left ________rather hard.
#44179
A
have ; is
B
has; is
C
have ; are
D
has ; are
Not only the USA and Russia but also China ________ manned satellites to circle the earth.
#85795
A
has sent up
B
has been sent up
C
have sent up
D
have been sent up
(2013·高考江苏卷)Generally，students’ inner motivation with high expectations from others________essential to their development.
#85585
A
is
B
are
C
was
D
were
He is the only one of the students who _______a winner of scholarship for three years.
#86306
A
is
B
are
C
have been
D
has been