题目内容：

My granddaughter, 10, was very happy the day before yesterday because her mother and the mother of one of her classmates took them to a park and a Pizza Hut (比萨饼屋) to celebrate Children's Day. For a whole day, the two girls played heartily - no homework, no extra-curricular (课外) skills training. The happy life lasted only for one day. Yesterday, everything returned to normal: doing homework till late at night and going over lessons learned at last weekend's English and "Olympic mathematics" courses.

Every time I went to my daughter's house in the evening, I saw my granddaughter sitting by the small desk in her room doing math exercises or writing a composition given by her teacher. On the white wall behind the desk are some words she wrote. One sentence reads: "Why is the exercise endless?"

Poor girl!

Although teachers have stopped giving after-school homework to primary school children, parents have been forcing their kids to take part in different kinds of extra-curricular training courses-learning English, painting, music instrument, weiqi, "Olympic mathematics" and so on, every Saturday and Sunday.

Are these extra-curricular courses really necessary in children's education？ The answer is certainly "No". Take the so-called "Olympic mathematics" for example. These courses are very difficult for the children to understand. Often, they are difficult even for adults.

1.The writer's granddaughter celebrated her Children's Day by _______.

A. playing all day    B. doing nothing    C. having a party    D. going over lessons

2.Usually at weekends the girl will _______.

A. stay at home    B. play with their classmates

C. do whatever she likes    D. go to different kinds of training courses

3.The writer thinks that her granddaughter _______.

A. lives a happy life    B. goes to bed early at weekend

C. has too much homework    D. likes to do more exercises

4.Which is true according to the passage？

A. The "Olympic Mathematics" is too difficult for kids.

B. The grandfather thinks playing is more important than learning.

C. Teachers often give students useless homework.

D. The parents don't want their kids to do lots of homework.

5.From the last paragraph we know that the writer thinks _______.

A. only school courses are useful to kids

B. some extra-curricular courses kids learn after school are not necessary

C. some extra-curricular courses are even more difficult for adults

D. kids shouldn't learn difficult courses