第四部分:完形填空(共10小题;每小题1分,满分10分)

    American people divide their days 21 several blocks 22 time, and plan different activities 23 different times. American time is "on the dot". If something is supposed to happen 24 eight o'clock, it will begin at eight. American value promptness and may become angry if a person is more than 15 minutes late 25 a good reason. If you know you are going to be late, call 26 advance and let someone know. 27 you arrive late, you should apologized and explain why. Americans arrive 28 time for doctors" appointments. The doctor may keep you 29 , but if you keep the doctor waiting, you may get a bill 30 the doctor's time!