I: Pronunciation: Pick out the word whose underlined part is pronounced differently from that of the others.
1. A. maid B. wait C. said D. sail
2. A. sailing B. railway C. brainstorm D. captain
3. A. enter B. mention C. vehicle D. helicopter
4. A. seatbelt B. bread C. ahead D. healthy
5. A. take B. mistake C. indicate D. says
6. A. safety B. traffic C. station D. plane
7. A. animation B. female C. pavement D. safety
8. A. sign B. critic C. illegal D. direct
9. A. filled B. wanted C. played D. opened
10. A. recommend B. seatbelt C. vehicle D. investigate
11. cooked B. talked C. booked D. naked
12. A. delivered B. clicked C. promised D. picked
13. A. needed B. developed C. wanted D. included
14. A. liked B. washed C. loved D. jumped
15. A. acting B. actor C. address D. action
