阅读下面短文，从各小题所给的四个选项中选出能够回答所提问题或完成所给句子的最佳答案。      

     People usually think that boys are stronger, heavier and taller than girls. Maybe it's true.  Some people even think that boys are smarter than girls. Expert's view: I can't agree with them.  If you say that girls learn faster than boys, you may be right, at least when it comes to young chimps(猩猩)using tools.    People

found that girl chimps in Tanzania,   East Africa,  use sticks to find tasty insects(昆虫)two years earlier

than boy chimps.   This is because young girl chimps watch their moms collect bugs, while the boy chimps climbtrees.But young boy chimps may hunt and throw(扔)sooner than girl chimps.It's also true for humans. It's easier for girls to learn to write and draw earlier, but boys often run and throw balls earlier than girls.  

Teacher's view:   I think boys and girls both have their special advantages.  Boys are good at sports. They are very athletic.  But girls do well in performance.  They are very calm.

1. People usually think boys are ____ than girls.

A. taller    

B. stronger    

C. heavier    

D. All of the above

2. Expert's view proves(证明)that____.    

A. boys are faster and smarter than girls    

B. girls are smarter sometimes    

C. young boy chimps are clever    

D. young girl chimps know everything

3. Teachers think that____. 

A. boys and girls both have their special advantages    

B. boys are calmer than girls    

C. girls are better at sports than boys    

D.  girls do better in drawing than boys

4. Which of the following is NOT true according to the passage?

A. It's more difficult for boys to learn to write.    

B. Girls often run and throw balls earlier than boys.    

C. Young boy chimps in Tanzania may hunt and throw sooner than young girl chimps.    

D. Boys are very athletic.

5. What's the best title of the passage? 

A. Boys and Girls.              

B. Are Girls smarter?    

C. Young Boy and Girl Chimps.    

D. Are Boys Slower?