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
How does the man feel about the woman's decision
A．Patient.
B．Surprised.
C．Worried.
D．Irritated.
单项选择题
What is the main topic of this conversation
A．The man's graduation.
B．The couple's engagement.
C．The man's smoking.
D．The man's stress.
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