buiphuonganh05092001 3/15/2025 10:05:25 AM

I. Find the word which has a different sound in the part underlined.

1. A. book                B. look                 C. floor                D. good

2. A. contaminate         B. natural                 C. damage                 D. area

3. A. hate                B. mate                C. cake                 D. manage

4. A. contaminate         B. deforest                 C. pollute                D. protect

5. A. pesticide         B. impact                 C. focus                D. practical

Unit 9 - (HS)