II. STRESS: ( tìm từ có trọng âm khác với 3 từ còn lại )
1. A. technology B. competitive C. facsimileD. document
2. A. courteous B. subscribe C. service D. customer
3. A. protect B. prohibit C. pollute D. cultivate
4. A. agriculture B. extinction C. environment D. establishment
5. A. electricity B. geothermal C. alternative D. radiation
6. A. ecologist B. fertilizer C. dangerous D. scientist
7. A. geothermal B. environment C. alternative D. pollutant
8. A fertilize B. deliver C. imagine D. destroy
9. A. hobby B. guitar C. modest D. common
10.A. discarded B. successful C. profitably D. accomplished
11.A. psychological B. cultivation C. solidarity D. ignorantly
12. A. burial B. cosmonaut C. reduction D. pyramid