It is said that the old coins       under the earth for about 100 years by the time they were discovered.
#102869
A
had buried
B
had been buried
C
buried
D
were buried
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— Can I help you, madam?— Yes, I bought this air conditioner here yesterday, but it _____ now. 
#104569
A
didn’t work
B
won’t work
C
can’t work
D
doesn’t work
 —I have just received another message, telling me I have won a big prize. —Don't jump on it. You ________. 
#101457
A
should be cheated
B
are being cheated
C
are cheating
D
should have been cheated