Every possible means ______ to prevent the air pollution, but the sky is still not clear.
#86302
A
is used
B
are used
C
has been used
D
have been used
推荐题目
(2013·咸阳一模)When we entered, we found lying on the ground ________ along with her parents.
#85572
A
was a girl
B
were a girl
C
a girl was
D
a girl were
A library together with 5000 books for the school.
#86091
A
was provided
B
were provided
C
provided
D
have provided
We all feel it is Jack as well as his wife that for their son's bad performance at school.
#85845
A
are to blame
B
is to the blamed
C
are to be blamed
D
is to blame