II. Choose the word whose stress pattern is different from the others by circling A, B, C or D
21. A. classmate B. greeting C. morning D. afternoon
22. A. open B. armchair C. teacher D. pencil
23. A. brother B. student C. doctor D. arrive
24. A. apartment B. motorbike C. telephone D. volleyball
25. A. stereo B. family C.engineer D. difficult