I. 1-6 CACAAA
II. 1. enough 2. dustbin 3. cause 4. necessary 5. energy
III. 1. is bad for 2. in thedaytime 3. walk on 4. to give up smoking 5.throwabout
IV. 1. Wash 2. Don’t stay 3. Does, give 4. Is, good or bad
V. 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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