I- Choose the word in each group that has the underlined part pronounced differently from the rest
1- a. referee b. see c. goalkeeper d. cheer
2- a. garbage b. mass c. trash d. flat
3- a. popular b. population c. forest d. melody
4- a. seat b. seaside c. search d. seaport
5- a. random b. machine c. ramo d. rap
6- a. environment b. website c. widely d. live
7- a. dump b. thumb c. bulb d. full
8- a. mass b. trash c. car d. hat
9- a. prevent b. press c. prepare d. prescript
10- a. polar b. pollute c. polite d. political