填写单词 根据句子意思，在空格中填写适当的单词，使句子完整。
My father is a  __________，he works in a big hospital.
Hamburger is a kind of _________ food. I never eat hamburgers.
The twins are a little_________. Can you find the differences between them?
The weather here is so cold, I can ______ stand it.
I read English every day to ______ my  English.
________ are you going to be an engineer ？
There is more air ______ than before because of lots of cars.
She is friendly to others, so she has ______ friends than me.