根据中文提示写出单词或词组，使句意完整、正确。
Getting up early is a good              （习惯）.
I think it’s good for us to eat more              （西红柿）.
Dr. White              （发明）a kind of new medicine last year.
The five Olympic rings              （代表）the five parts of the world.
Smoking is bad for health. So smokers must             （放弃）smoking as soon as possible.