第二节语法填空（共10小题；每小题1.5分，满分15分）
阅读下面短文，根据上下文填入适当的词语，或使用括号中的词语的适当形式填空，并将答案填写在答案标号为31—40的相应位置。
Were you the first or the last child in your family? Or were you a middle or an only child?
Some people think  31  matters where you were born in your family. But there are different ideas about what birth order means. Some people say that oldest children,  32  are smart and strong-willed, are very likely  33   (succeed).  The reason  34  this is simple. Parents have a lot of time for their first child and give him or her a lot of attention. An only child will succeed for     35   same reason.
What happens to the  36  children in the family? Middle children don’t get so much attention, so they don’t feel that important. If a family has many children, the middle one sometimes gets lost in the crowd. The youngest child,  37 , often gets special treatment. Often this child grows up to be funny. But a recent study saw things quite  38  (difference). The study found that first children believe in family rules. They didn’t take many chances in  39  lives. They usually  40  (follow) orders.  Rules didn’t mean as much to later children in the family. They took chances and they often did better in life.