khoanh từ có phát âm khác.
1. A. preserve B. conserve C. raise D. reserve (âm s)
2. A. bury B. eruption C. result D. construction (âm u)
3. A. watched B. astonished C. closed D. cooked (âm ed)
4. A. challenge B. charity C. choir D. chore (âm ch)
5. A. peace B. reasonable C. lean D. bear (âm ea)