1. A. farther B. earth C. both D. marathon
2. A. something B. brother C. them D. weather
3. A. think B. month C. everything D. clothing
4. A. birthday B. mouthful C. although D. worth
5. A. clear B. hear C. area D. heavy
6. A. weekend B. exercise C. exhaust D. contest
7. A. family B. sportsman C. congrats D. marathon
8. A. event B. female C. special D. sentence
9. A. fantastic B. programme C. badminton D. karate
10. A. many B. active C. happen D. match
đề bài : Find the word which has different sound in the part underlined.