第18题: [单项选择]What’s the best way to travel in most cities A. During 9:00a.m. and 5:00 p.m. from Monday to Friday. B. Between 8:00a. m. and 6:00 p.m. from Monday to Friday. C. In the period of 9:00a.m. and 5:00 p.m. every day. 参考答案:A 答案解析:[解析] 周一到周五的9:00—5:00最为繁忙。故本题答案为A。