Throw away these things, they are totally______
A. valuable
B. invaluable
C. valueless
D. priceless
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We had better send him to ______hospital at once.
A. a
B. the
C. an
D. /
Care should be taken to decrease the length of time that one is ________loud continuous noise.
A. associated with
B. subjected to
C. attached to
D. filled in
A new big oilfield is said ______in the west of our country.
A. to have found
B. to have been found
C. found
D. being found
The Chicago Buildings was different _____each of its stories was complete in itself.
A. from which
B. from that
C. in which
D. in that