They ________ to enter the building by the back door; however, the front door was locked.
#102352
A
are supposed
B
aren’t supposed
C
weren’t supposed
D
were supposed
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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
The manager found that his office ______ the day before.
#102032
A
had broken in
B
has been broken into
C
had been broken into
D
has been broken in