根据短文内容，从短文后面的选项中选出填入空白处的最佳选项。

Many students get ill easily in autumn. 【小题1】 What can we do to keep ourselves healthy? Here are some tips.

Enough healthy food. 【小题2】 Some students don’t like to eat breakfast. They make a big mistake (错误). Breakfast is a very important meal in a day. If you want to be healthy, you should eat less junk food. Vegetables and fruit are delicious and healthy. We’d better drink 500ml milk every day.

【小题3】 Doing exercise is another way to make you healthy. So you should do some sports after class. Doing sports can make you strong.

Enough smiles (微笑). Smile is the best way to make you healthy. Try to find the things that can make you laugh and you will be happy every day. You should try to be optimistic (乐观的) about life. 【小题4】

Enough time of rest (休息). Don’t stay up! Students usually go to bed at 10:00. 【小题5】 There is a famous saying, “Early to bed and early to rise makes a person healthy, wealthy and wise.” It tells us enough time of rest is important.

A．Having some good eating habits is really important.

B．Enough exercise.

C．They have to go to the hospital and may miss a lot of classes.

D．Remember smile is the best medicine.

E．If you want to have a good grade, you must have a good rest.