III.Find the word which has a different sound.
1. A. warmth B. fourth C. tooth D. breathe
2. A. ask B. plastic C. back D. grandparent
3. A. start B. marbles C. stars D. solar
4. A. hear B. clear C. bear D. fear
5. A. ask B. plastic C. back D grandparent
( Cho mik xin ctrlhn nha )
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