阅读理解。根据短文内容，判断句子正（T）误（F）。
If you have headache and a sore throat, you may have the flu. If you have the flu, you usually have a fever and need to see a doctor. You should take some medicine and drink lots of warm water. You should stay in bed for a few days and then you will feel better.
1．If you have the flu, you don't feel sick. （
________）
2．If you have the flu, you usually have a fever. （
________）
3．If you have the flu, you needn't drink warm water. （
________）
4．If you have the flu, you shouldn't play sports. （
________）
5．If you have the flu, you should take some medicine. （
________）
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