ind the word which has a different sound in the underlined part.
1. A. healthy B.grocery C.nearby D. energy
2. A. finished B.played C.preferred D. freed
3. A. mount B.country C.ground D. found
4. A. played B.travelled C. planned D. watched
5. A. buffalo B.unhappy C.pollution D. structure
6. A. collection B. comic C.concert D. volunteer
Choose the word whose main stress pattern is not the same as that of the others.
7. A. designer B.mechanic C. engineer D. musician
8. A. attention B.pollution C. holiday D. effective
9. A. expensive dB. wonderlan C. favourite D. driverless
10.A. system B. transport (v) C. future D. traffic