题目内容：

John, a famous musician, took his priceless antique violin and played it in the crowded subway station. The music from the violin was delicately streaming throughout the whole station. However, during the one-hour play, only six or seven people were truly appreciating the charming music. A three-year-old kid was so fascinated by the music that he forgot everything around. John only got 52 dollars for his work that day.

     However, in normal days, when John is about to hold a concert, one ticket can be sold at more than 100 dollars and it is extremely hard to buy a ticket even at such a high price. Therefore, later, many passers-by in the station that day felt deeply regretful for not recognizing the famous musician and missing such a valuable but cheap music feast.

     I have a very busy friend who had totally changed after knowing that his wife came down with incurable illness. He cooked by himself for the family and took a walk with his wife every day. Nonetheless, his wife still did not manage to conquer the illness and passed away after three months. After that, he often sighed miserably that due to his past busy life, he had missed a lot of beautiful time with his wife. But now, it is impossible to make up for it.

     It is no use crying over spilt milk. We have missed a lot of precious things in our life without knowing to cherish them.

    Actually, I also missed something precious before. The reason why we would have missed those precious things is less than simple: we had thought that we could still own them tomorrow.

     Nevertheless, tomorrow is actually by no means reliable. There was a famous Buddhist monk saying that in many people’s lives, they have only done two things: waiting and regretting. The result is that they were always too late to cherish what they had before they lost it. We would often claim to do something when we grow up, or when we have money or when we become old, etc. However, when we reach the condition we have expected, we could no longer realize our wish, because we have lost it by then.

1.The reason why people often regret may be that _______.

A. they are too busy to notice the beautiful things

B. they are too careless to cherish precious things

C. they are lazy to observe the surroundings

D. they think that it’s none of their business

2.The idea the author would like to get across to us seems that _______.

A. actions speak louder than words

B. a bad beginning makes a bad ending

C. the lost will never come back

D. each day brings its own bread

3.What method does the author employ to support his opinion？

A. By listing data.                          B. By comparing the details .

C. By explaining the procedures .                   D. By taking examples.

4.How do we understand the underlined parts “waiting and regretting”?

A. Many people will not cherish what they have until they lost them.

B. Many people cannot do well until they get older.

C. Many people know what they are doing.

D. Many people regret for what they don’t possess.