I. Choose the word whose main stress is placed different:
1. A. popular B. awful C. entertain D. stupid
2. A. clumsy B. educational C. entertaining D. documentary
3. A. national B. adventure C. program D. viewer
4. A. weatherman B. control C. remote D. schedule
5. A. favorite B. knowledge C. document D. memorial
( Ai giúp e với đi ạ T^T )