Choose the word whose underlined part has a different pronunciation from the others in each group:
1/ A. chemist B. change C. child D. cheap
2/ A. plenty B. fairy C. sky D. weekly
3/ A. feather B. head C. healthy D. meat
4/ A. this B. mine C. file D. night
5. A. little B. eaten C. click D. fit
6. A. frightening B. brigade C. pilot D. fire
7. A. simple B. little C. dimple D. sweet
8. a. routine B. line C. combine D. dine