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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偷懒是不行的!作业要认真对待,何况英语很简单啊!。

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