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fresh ? to bed early ? hands and change clothes often ? our rooms clean ? enough water ? some medicine ? away from crowded places √ √ √ √ √ Watch the flash and write down Dr. Li’s advice. First, ________________________________________________ Second, ____________________________________________ Third, _______________________________________________ Finally, ______________________________________________ we should exercise often to build us up. we should keep our rooms clean and the air fresh all the time. we should wash our hands and change our clothes often. we should keep away from crowded places. ? Must we go to see a doctor at once when we have the flu ? 肯定回答: Yes, we must.