阅读理解。

     Doctor Clark was a very busy man. He always worked hard. He often forgot his family's birthday.

He loved his wife. He wanted to give her a present. On his way home from his hospital he bough some

beautiful flowers in a shop. When Doctor Clark got home, he gave his wife the flowers and said "Happy

birthday to you, dear! It's September26 today, I remembered your birthday this year." Mrs. Clark

laughed and said, "My birthday was the day before yesterday. But thank you all the same. Better late

than never!"

1. What did Clark buy when it was his wife's birthday?

A. Some flowers  

B. Nothing  

C. Some food  

D. Some drinks

2. Where did Clark work?

A. In a shop  

B. In a family  

C. In a hospital  

D. In a store

3. What day is Clark's wife's birthday?

A. The day before yesterday    

B. Today

C. September            

D. September24

4. Why did he forget his family's birthdays? Because ______.

A. he is too old      

B. he is a doctor  

C. he is not busy    

D .he works very hard

软骨肉瘤的好发年龄（）。

A.40～60岁

B.10岁以下

C.20～40岁

D.5～15岁

E.60岁以上