_______ in time, little Franz was afraid ________ scolded.

 He is not a man easy ________.

 Reading without stop is a ________ piece of work.

What way are you thinking of ________ rid of this kind of pollution?

 The schoolboy regretted ________ after he didn't pass his exam.

 ________ the normal condition, he can read 150 words a minute.

 He _________ the country record at the sports meeting.

— I must apologize for ________ ahead of time.

— That's all right.

American cities are   1   other cities around the world. In every country, cities reflect the   2   of the culture. Cities contain the very   3   side of a society: opportunities for education, employment and so on. They also   4    the very worst parts of a society: violent crime, racial discrimination and poverty. American cities are changing, just    5   American society.

After World War Ⅱ， the population of   6    large American cities decreased;   ___7 , the population in many Sun Belt cities increased. Los Angeles and Houston are cities   8__ population increased. These population moving to and from the city reflect the changing values of American society.

During this time, in the   9   1940s and early 1950s, city people became wealthier. They had more children. They needed more   10   . They moved out their flats in the city to buy their own houses. They bought houses in the   11   , areas near a city where people live. These are areas without many offices or factories. During the 1950s the American “dream” was to have a house on the outskirts.

Now things are changing. The children of the people who   12   the cities in the 1950s are now adults. They,   13   their parents, want to live in the cities.   14  continue to move to cities in the Sun Belt. Cities are   15   and the population is increasing in   16   states as Texas, Florida and California. Others are moving to more   17    cities of the Northeast and Midwest, such as Boston, Baltimore and Chicago.

Many young professionals, doctors and lawyers are moving back into the city. They prefer the city   18   the suburbs because their jobs are there; they are afraid of the fuel shortage; or they just   19   the excitement and opportunities which the city offers. A new class is moving into the cities---a wealthier,   20   mobile class.

Americans have contributed to many art forms, but Jazz a type of music, is one that was not started in the United States. Blacks, who sang and played the music of their homeland, created jazz.

Jazz is a mixture of the music of Africa, the work songs the slaves sang and religious(宗教的) music. Improvisation is an important part of jazz. This means that musicians make the music up as they go along, or create the music on the spot. This is why a jazz song might sound a little different each time it is played

Jazz bands formed in the late 1800s. They played in bars and clubs in many towns and cities of the South, especially in New Orleans. New Orleans is an international seaport, and people from all over the world came to New Orleans to hear jazz.

Jazz became more and more popular. By the 1920s, jazz was popular all over the United States. By the 1940s, you could hear jazz not only in clubs and bars, But in concert halls as well. Today, people from all over the world play jazz. Jazz musicians from the United States, Asia, Africa, South America, and Europe meet and share their music at festivals on every continent. In this way jazz continues to grow and change.

1.What can be the best title of the passage?

2.Which of the following is true?

3.From the text it can be inferred that

4.It took about _____years to make jazz popular in the United States.