Answer:1. The postman delivered the letter. (past tense)2. I will accompany my brother to the airport tomorrow. (future tense)3. We show gratitude by deeds. (present tense)4. Adenoids often cause deafness. (present tense)5. When will your mother return? (future tense)6. Poets express their ideas in verse. (present tense)7. Heroes sacrifice a lot for their country. (present tense)8. Prayers bring peace to the soul. (present tense)9. I shall be twelve years old soon. (future tense)10. Microorganisms grow rapidly in dark and moist places. (present tense)FOLLOW M3 FOR MORE ANSWERS!