18.What does Ms Allen do to help us learn new English words? A.She asks us to watch English films. B.She uses songs and stories in class. C.She tells us to read them many times.
17.15.The smallest post office in the USA has only one room with no clerks. 16.The post offices in the USA are usually open from 8:30to 4:30on weekdays. 17.The United States Postal Service is the largest company in the world. 18.There are more than 40,000 post offices throughout the United States. 19.The post offices in the United States deal with more mails than those in Japan. 20.The passage mainly tells about the history of the post office in the United States.