焊工为什么要进行外观检查？

    When I was three years old just before my sister was born, my mom asked me what we should name the
new baby. I said, "Let's call   1   Gravy!"
    Having a sister   2   my life. When my sister and I played together, we   3   got into fights and got angry
with each other. It sometimes drove our parents crazy.   4   at the same time, we learned to share our things
and forgive (原谅) each other when we got angry.
    In North America,   5   families have a boy and a girl. Of course, some have three or more. However, in
China,most children don't have brothers or sisters, and they have to learn those things in other ways, which
is more   6  .
    When I moved away to university, my sister   7   me she wished I still lived with her. She wasn't used to
getting all the attention   8   my parents. But Chinese children get attention for all their life!
    Some middle school   9   in China wish they had a brother or sister.  10  you are one of them, I have a
good idea for you. Treat your friends and classmates as your brothers and sisters!