... recognize 6) A. effect B. extinct C. kilometer D. destruction7) A. climate B. various C. biology D. wildlife8) A. fires B. causes C. activities D. temperatures 9) A. area B. reveal C. peace D. feature10) ... - John didn’t studied hard last year, so he failed his exam. > If John had studied hard, he wouldn’t have failed his exam. (He wouldn’t have failed his exam, if John had studied hard.)Công ... your family/ hope/ see/ you. Love,HoaV/ Match a verb in A with a phrase in BA B1. to contain2. to learn3. to take4. to threaten5. to come 6. to have7. to spend8. to join 9. to preserve10....