单项选择题

Questions 19-21 are based on the following passage. You now have 15 seconds to read the questions 19-21. How much did the "NO SMOKING" sign cost

A．$50.
B．$5.
C．$55.
D．$5,000.
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单项选择题
What time is it now
A．7:05.
B．6:55.
C．6:45.
D．7:15.
单项选择题
What does the man say seems to happen to his sense of smell
A．It stops working.
B．It becomes sharper.
C．It confuses odors.
D．It detects fewer odors.
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