Mark the letter A.B. C or D to indicate the word whose underlined part differs from other three in pronunciation in each of the following questions

I. Mark the letter A, B, C, or D to indicate the word whose underlined part differs from other three in pronunciation in each of the following questions.
1. A. eighteen. B. heighten. C.neighbor. D weighty.
2. A. eight. B. height. C. sleigh. D. weight
3. A. neigh. B. weight. C. sleight. D. freight
4. A. answer. B. research. C. museum. D. festival
5. A. bus. B. news. C. sort. D. salt
6. A. shops. B. tales. C. toys. D. chores
7. A. easy. B. visit. C. upset. D. busy.
8. A. shops. B. tales. C. rods. D. chores.