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