单项选择题

Why did the building get sick

A．The building needs more breath.
B．Too many pollutants and moisture.
C．The building has been overused.
D．People don't take good care of it.
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单项选择题
What happened during the past four weeks
A．The man has bought a new house.
B．The man's company has moved to a new building.
C．The man's family has moved to a new building.
D．Nothing special.
单项选择题
Why didn't he go to see the doctor immediately
A．He has no time during weekdays.
B．He has no time during weekends.
C．The symptoms disappear on weekends.
D．Both A andC.
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