Greetings from venice. carnival time here and we (have) a great time. italians (celebrate) carnival every year in late february. the festival (last) 10 days and it (be) lots of fun. people (wear) lovely costumes, (dance) in the streets and (go) to parties. it's chilly today. right now it (rain cathy and i (sit) in a cafe. we (wait) for the big parade to begin. a girl just behind us (sing) and her friend (play) the violin. her voice (be) great. have to go now. see you soon! erke : вместо точек вставить слова present simple, present continuous.

Даю только аргументы, как вы и просите в задании:
Positive is that knowledge of any foreign language and work as a translator give you an oppotunity to visit different countries and feel youself comfortable.
The negative is that learning any foreign language is a big job and a lot of work. In addition, to study any foreign language is impossible at once, you'll have to learn it constantly.

Положительное  в том, что зная иностранный язык и работая переводчиком, вы можете посетить разные страны и чувствовать себя комфортно. Отрицательное в том, что выучить иностранный язык это огромный труд и большая работа. Кроме этого, выучить чужой язык невозможно за один раз, вам придется учить его постоянно.

1, My father is a teacher. 2. He was a pupil twenty years ago. 3. I will be a doctor when I grow up. 4. My sister will not be at home tomorrow. 5. She will be at school tomorrow. 6. Will you be at home tomorrow? 7, Was... your father at work yesterday? 8. My sister ..was . ill last week. 9. She is not ill now. 10. Yesterday we... at the theatre. 11. Where is  your mother now? — She is in the kitchen. 12. Where were you yesterday? — I was at the cinema. 13. When I come home tomorrow, all my family will be at home. 14.Is your little sister in bed now? — Yes, she is15.Will you be... at school tomorrow? — Yes I will . 16. When my granny was... young, she was an actress. 17. My friend K is,,. in Moscow now. 18. He will be in St. Petersburg tomorrow. 19. Where are your books now? — Theyare in my bag.
1. I will play) chess tomorrow. 2. I will not play) chess tomorrow. 3. Will you
play) chess tomorrow? 4. He plays) chess every day. 5. He  does (not play)
chess every day. 6. Does he  play) chess every day? 11. Nick  goes) to school every day. 12. Nick will go) to school tomorrow. 13. Will you come) to my place next Sunday? 14. Will you  read) this book next week? 15. Do you read) books every day? 17.1 will not see) him tomorrow. 18. What will you  do) tomor¬row? 19. What will your friend  do) tomorrow? 20. Where will you  go) next summer? 21. Where do you  go) every morning? 24. She dances every day. 25. Will she  dance) tomorrow?