Exercise 1
1. goes
2. did not go
3. will grow
4. is doing
5. was doing
6. are going
Exercise 2
1. likes playing
2. is вместо are
3. came
4. should вместо shall
5. do not eat
6. are going
Exercise 3
1. This student does not know several foreign languages.
2. shall not
3. We did not do this work very quickly.
4. I did not take this book from the library.
5. russia is not the largest country in the world.
Увы остальное не успеваю написать