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录音1a-P43
? 1.exercise often
? 2.keep the air fresh
? 3.go to bed early
? 4.wash hands and change clothes often
? 5.keep our rooms clean
? 6.drink enough water
? 7.take some medicine
? 8.keep away from crowded places
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Key points
1.开始吧；请便
2.常锻炼
3.增强...体质
4.远离人多的地方
5.常换衣服
6.接受某人的建议
go ahead
exercise often/do more exercise
build sb.up
keep away from crowded places
take one's advice
change clothes often
1.Must we go to see a doctor at once when we have the flu ?
肯定回答： Yes, we must.
2.Must we take some medicine to prevent the flu?