how much time do you save with them? how? Are there any possible threats of using mobile apps ?

1. Tom ( plays) football on Saturday. 2. He (does not  play) football every day. 3. I (am wearing) a suit now. 4. I (am not wearing) jeans now. 5. My friend (do not  like) to play football. 6. I (am not  reading) now. 7. ( Is) He ( sleeping) now? 8. We (do not  go) to the country in winter. 9. My sister ( eats) sweets every day. 10. She (is not  eating) sweets now. 11. They ( do) their homework in the afternoon. 12. They (do not  go) for a walk in the evening. 13. My father (does not  work) on Sunday. 14. He ( works) every day. 15. I ( read) books in the evening. 16. I (do not  read) books in the morning. 17. I (am writing) an exercise now. 18. I (am not writing) a letter now. 19. They (are playing) in the yard now. 20. They (are not  playing) in the street now. 21. (Are) They ( playing) in the room now? 22. He ( helps) his mother every day. 23. (Does) he ( help) his mother every day? 24. He (does not  help) his mother every day. 25. ( Do) You ( go) to school on Sunday? 26. (Is) She ( working) in a shop now? 27. (Is) He ( delivering) letters now? 28. (Do) You (go) to the opera with your friends?

1. Tom plays football on Saturday. 2. He doesn't play football every day. 3. I am wearing a suit now. 4. I am not wearing jeans now. 5. My friend doesn't like to play football. 6. I am not reading now. 7.Is he sleeping now? 8. We don't go to the country in winter. 9. My sister eats sweets every day. 10. She isn't eating sweets now. 11. They do their homework in the afternoon. 12. They don't go for a walk in the evening. 13. My father doesn't work on Sunday. 14. He works every day. 15. I read books in the evening. 16. I don't read books in the morning. 17. I am writing an exercise now. 18. I am not writing a letter now. 19. they are playing in the yard now. 20. They aren't playing in the street now. 21.Are they playing in the room now? 22. He helps his mother every day. 23. Does he help his mother eve¬ry day? 24. He doesn't help his mother every day. 25. Do you go to school on Sunday? 26.Is she working in a shop now? 27.Is he delivering letters now? 28.Do you go to the opera with your friends?