1. Rewrite the sentence using "could do": Example: She was able to finish the project. she could do _______________. 2. Complete the sentence using "could have done": Example: I regret not studying more. I _______________. 3. Choose the correct verb form: Example: He _______________ swim across the river when he was younger. a) could do b) could have done c) was able to do d) managed to do 4. Fill in the blank with the appropriate modal verb: Example: She _______________ her own car when she turned 18. a) could do b) could have done c) was able to do d) managed to do 5. Transform the sentence using "was/were able to do": Example: We could reach the mountain peak. We _______________. 6. Rewrite the sentence using "managed to do": Example: They could solve the puzzle. They _______________. 7. Form a question using "could do": Example: He painted the entire house. What _______________? 8. Choose the correct option: Example: I couldn't find my keys, but luckily I _______________ locate them eventually. a) could do b) could have done c) was able to do d) managed to do 9. Complete the sentence with the appropriate modal verb: Example: We _______________ convince her to come to the party. a) could do b) could have done c) were able to do d) managed to do 10. Transform the sentence using "was/were able to do": Example: They could finish the marathon. They _______________. 11. Form a negative sentence using "could have done": Example: He succeeded in winning the competition. He _______________. 12. Complete the sentence using "could do": Example: Susan had the ability to play the piano beautifully. Susan _______________. 13. Rewrite the sentence using "managed to do": Example: They could reach the airport on time. They _______________. 14. Choose the correct verb form: Example: We _______________ locate the missing documents after a thorough search. a) could do b) could have done c) were able to do d) managed to do 15. Fill in the blank with the appropriate modal verb: Example: Despite the challenging circumstances, the team _______________ win the game. a) could do b) could have done c) was able to do d) managed to do 16. Transform the sentence using "was/were able to do": Example: He could solve the complicated math problem. He _______________. 17. Rewrite the sentence using "managed to do": Example: They could pass the difficult exam. They _______________. 18. Form a question using "could have done": Example: She achieved her goal. What _______________ to reach it? 19. Choose the correct option: Example: We _______________ repair the car ourselves without any help. a) could do b) could have done c) were able to do d) managed to do 20. Complete the sentence with the appropriate modal verb: Example: He _______________ convince the committee to approve his proposal. a) could do b) could have done c) was able to do d) managed to do 21. Transform the sentence using "was/were able to do": Example: They could find a solution to the problem. They _______________. 22. Rewrite the sentence using "managed to do": Example: She could finish the marathon. She _______________. 23. Form a negative sentence using "could do": Example: We were successful in completing the project. We _______________. 24. Complete the sentence using "managed to do": Example: Despite all the obstacles, she could achieve her dream. She _______________. 25. Choose the correct verb form: Example: They _______________ repair the broken machine by themselves. a) could do b) could have done c) were able to do d) managed to do