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
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Don’t sit on the chair. There ________ on it.
#43991
A
is some water
B
are some water
C
is any water
D
are any water
--Will there be fewer trees? --_______________.
#43589
A
Yes, there will.
B
Yes, they will.
C
No, there aren’t.
D
No, they won’t.
All that I need _____ a large sum of money with which to buy my wife a diamond ring.
#86168
A
are to be
B
is
C
are
D
were
The sign on the right tells us taking photos ________here.
#43674
A
is allowed
B
isn’t allowed
C
are allowed
D
aren’t allowed