题目内容：

    During the summer holiday, some students might have been busy with traveling, summer camps and all kinds of courses, but a special group of Chinese middle school students decided to taste the hardship of life outside school.

Twelve students in a big city sold vegetables at a local market together. Within 12 days, they made more than 1,500 yuan. Among them, the oldest is 21 years old, while the youngest is just 10. They are all cousins in a big family and eight of them are from rural areas. "Compared to traveling, such social practice connects us and makes us learn how tough our parents are," said Dalin, 18, to the City Morning Post. Dalin, a senior high graduate, and her 12-year old brother Xiaolin came up with the idea.

They learned to work hard to sell their veggies. Every morning they had to wake up at 3 o'clock. Some of them went to the farmer's market to buy vegetables. Some of them went to the local market to take up a temporary stall (临时摊位). To lower the cost, they learned to bargain (讲价) with the sellers. At about 16:30, they began to sell vegetables. They peddled (吆喝) loudly to attract (吸引) customers. After several days, they got some experience, too. For example, it was better to put vegetables in order and bigger ones on top. When the vegetables are too heavy, they should give customers an extra plastic bag.

When they finally packed up and went home, they had a small meeting. Everyone took notes and shared their feelings. "We are tired," said Dalin, "but we gained a lot."

1.In the writer's opinion, the 12 students action was _______.

A.popular B.encouraging C.strange D.embarrassing

2.The cousins decided to sell vegetables at a market to _______.

A.show how able they were B.have less hardship of life

C.learn how hard their parents work D.prepare for their future traveling

3.They bargained with the sellers to _______.

A.cut down the cost B.share their feelings

C.get bigger vegetables D.attract more customers

4.It's clear that _______.

A.they took up the temporary stall in turn

B.they gave each customer an extra plastic bag

C.Dalin and Xiaolin got the idea of selling vegetables

D.the elder sold vegetables when the younger took notes

5.The best title of the story should be _______.

A.Summer Courses B.Family Business

C.Students Learn from Bargains D.Cousins Work with Vegetables