阅读短文，选择合适答案。
How to keep healthy
Here are some things you can do to keep you healthy.
Having a good diet is very important. It means eating lots of different kinds of food and lots of fresh fruit and vegetables. They are good for your health.
Doing cxercise is another way of keeping you healthy. Exercise makes you fit and helps you relax. So exercise everv day from now on!
Some things are bad for your health, like smoking and drinking alcohol（酒）. You had better give up these things. You should go to a doctor for a health check once a year. The doctor will be able to help you find some problems that you might have. The earlier you know the better for you.
1．Having a good diet means eating much meat and fish every day.
( )2．Doing exercise is a way to keep you healthy.
( )3．Smoking and drinking alcohol can make you relaxed and healthy.
( )4．You should go to a doctor for a health check once a year.
( )5．We should give up smoking, but we needn't give up drinking alcohol.
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