[单项选择]For many years, people （　） electric cars. However, making them has been more difficult that predicted.
A. had dreamed of
B. have dreamed of
C. dreamed of
D. dream of

[单项选择]For many years, people （） electric cars. However, making them has been more difficult that predicted.
A. had dreamed of
B. have dreamed of
C. dreamed of
D. dream of

[单项选择]For many years, people （）electric cars. However, making them has been more difficult that predicted.
A. had dreamed of
B. have dreamed of
C. dreamed of
D. dream of

[单项选择]For many years, people（）electric cars. However, making them has been more difficult that predicted.
A. had dreamed of
B. have dreamed of
C. dreamed of
D. dream of

[单项选择]In recent years many countries of the world have been faced with the problem of how to make their workers more productive. Some experts claim the answer is to make jobs more varied. But do more varied jobs lead to greater productivity The evidence shows that while variety certainly makes the worker’’ s life more enjoyable, it does not actually make him work harder. As far as increasing productivity is concerned, then, variety is not an important factor. Other experts feel that giving the worker freedom to do his job in his own way is important. There is no doubt that this is true. The problem is that this kind of freedom cannot easily be given in the modern factory with its complicated machinery which must be used in a fixed way. Thus, although freedom of choice may be important, usually very little can be done to create it. Another important consideration is how much a worker contributes to the product he is making. In most factories the worker sees only one small part of th
A. offer greater productivity
B. drive workers to work harder
C. make workers more productive
D. make worker’s life more enjoyable, but do not make them more hardworking

[单项选择]In recent years many football clubs __ as business to make a profit.
A. have run
B. have been run
C. had been run
D. will run

[单项选择]Though people plant many trees in this area every year, the top of some hills is still ______.
A) open C) empty
B) bare D) blank

[单项选择]In recent years many football clubs _____ as business to make a profit.
A. have run
B. have been run
C. had been run
D. will run

[单项选择]In recent years many football clubs _____as business to make a profit.
A. have run
B. have been run
C. had been run
D. will run

[简答题] Until the nineteen sixties, black people in many parts of the United States did not have the same civil rights as white people. Laws in the American South kept the two races separate. These laws forced black people to attend separate schools, live in separate areas of a city and sit in separate areas on a bus. On December first, nineteen fifty-five, in the southern city of Montgomery, Alabama, a forty-two year old black woman got on a city bus. The law at that time required black people seated in one area of the bus to give up their seats to white people who wanted them. The woman refused to do this and was arrested. This act of peaceful disobedience started protests in Montgomery that led to legal changes in minority rights in the United States. The woman who started it was Rosa Parks. Today, we tell her story. She was born Rosa Louise McCauley in nineteen-thirteen in Tuskegee, Alabama. She attended local schools until she was eleven years old. Then she was sent to schoo