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
_____ of the students who took part in the military training is 750.
#85775
A
A number
B
A lot
C
Dozens
D
The number
The number of the people who _____ cars _____increasing.
#86143
A
owns,are
B
owns,is
C
own,is
D
own,are
Amy usually _______ from school, but today she goes home by bike.
#43699
A
walk home
B
walk to home
C
walks home
D
walks to home
A teacher and artist ______coming to speak to us about painting tomorrow afternoon.
#85672
A
is
B
are
C
was
D
were
Lots of medicine as well as equipment such as tents _______ offered to the area since the earthquake occurred.
#85871
A
has been
B
have been
C
is being
D
are being