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单项选择题
A．butB．howeverC．soD．while
A．but
B．however
C．so
D．while
单项选择题
When is the heavy traffic hour on most city streets according to the passage
[A] During 9:00 a.m. and 5:00 p.m. from Monday to Friday.
B. Between 8:00 a.m. and 6:00 p.m. from Monday to Friday.
C. In the period of 9:00 a.m. and 5:00 p.m. every day.
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