题目内容：

根据短文内容及首字母提示,填写所缺单词,并将答案填写在相应位置上。

If you have a brother or sister, you already know you are different from each other. You live together in the same house and the same parents, b1. you have different personalities.Why is this? One possible r2. is the way your parents treat you.

First –born children receive all the attention(关注) from their p3.. Most families have twice as many photos of a first-born than any other one. Parents usually g4.first-borns more responsibility(责任) and depend on them to look after younger brothers and sisters. As a r5., first - borns are often responsible, hard-working and serious. They often want to do well at school and work. There are m6. first-born American presidents than second or last-born children, for example, George W. Bush, George Washington, and Lyndon Baines Johnson.

When a second child a7., parents are not so excited. The second child has to compete with the first-born for the parents’ attention and l8.. These children often choose different sports and h9. in order to get their family’s attention. They are often friendly and cool. Many famous talk-show hosts(主持人) were born last. The famous American host Ellen DeGeneres is a good e10.. She is the second child of her family.