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1、I.1-6 CACAAAII. 1. enough 2. dustbin 3. cause 4. necessary 5. energyIII. 1. is bad for 2. in thedaytime 3. walk on 4. to give up smoking 5.throwaboutIV. 1. Wash 2. Don’t stay 3. Does, give 4. Is, good or badV. 1. relax 2. coughs 3. smoking 4. cause 5. give。

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