第3题: [单项选择]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. 参考答案:A