A lot of attention ______ to greenhouse gas emission. Look at those environmental posters.
#101577
A
is paying
B
is being paid
C
has paid
D
had been paid
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Mother blamed the dog for breaking the glass, but in fact I _____.
#103293
A
was to be blamed
B
is to be blamed
C
was to blame
D
is to blame
We ______ hurry because we still had a lot of time.
#100057
A
don't have to
B
needn't have to
C
didn't need
D
didn't have to