Every possible means _____ to prevent the air pollution, but the sky is still not clear. 
#85634
A
is used
B
are used
C
has been used
D
have been used
推荐题目
There ______ quantities of apples in the basket and there was ______ milk in the bucket.
#85784
A
were; a number of
B
was; quantities of
C
were; a quantity of
D
was; a good many
The number of students in our school   about 30 000 and  them study hard.
#86090
A
is;a large amount of
B
are;a number of
C
is;large amount of
D
is;a large number of
_______ of the teachers in our school is 118 and _________ of them are women teachers.
#43865
A
The number, first fourth
B
The number, one fourth
C
A number, first fourth
D
A number, one fourth