__________(55)
A.pollute
B.polluting
C.polluted
D.pollution

__________(54)
A.out
B.for
C.at
D.into

__________(52)
A.work
B.change
C.make
D.let

On _______ he had won, he jumped for joy.
A.he was told
B.having told
C.being told
D.telling

When a fire broke out in the Louvre, at least twenty _______ paintings were destroyed, including two by Picasso.
A.worthless
B.priceless
C.valueless
D.worthy

Next week when there ______ a full moon, the ocean tide will be higher.
A.is
B.will be
C.is being
D.will have been

George wouldn't have met Mary_______ to his brother's graduation party.
A.had he not gone
B.hadn't he gone
C.if he has not gone
D.if he shouldn't have gone

Jane’s brother doesn’t work as a worker and she doesn’t ______.
A.neither
B.so
C.too
D.either

If you had taken my advice, you _______ in such difficulties now.
A.wouldn't have been
B.hadn't been
C.wouldn't be
D.won't be

One's fingerprints are _______ other person.
A.different from
B.different from any
C.differ from any
D.different from those of any