1. C
2. E
3. A
4. B
5. D
6. A
7. D
8. A
9. E
10. C
11. E
12. A
13. B
14. D
15. A
16. B
17. E
18. B
19. C
20. A
I. I am Bingo. I am a little red dog. I like bones. They are good.
2. This is Tom and that is Nick. They are little. They like cars buses and bikes.
3. Sally and Liz are students.They are in Moscow. They like books cakes and sweets.
4. This is Ken. He is a pupil in London. He is not big. He is little. He is a good pupil.
5. Rose is happy. She is in Hollywood. She is fine.
6. My name is Robin. And my name is Rick. We are students, we are not pupils.
7.What is your name? Are you a pupil? Are you in Moscow? Are you a good pupil?
8.This is a rat. It is black and big. It is not good, it is bad.
16) A
17) C
18) B
19) C
20) A
21) A
Future Simple.
1) My birthday party will be celebrated next week, when my holiday will be a day off.
2) Aquatic lives will become wiped out in a short time under the acid influence without our help.
Present Simple.
1) Newton's method of finding the roots of equation is well-known by almost each person nowadays.
2) The bad events of aquatic lives' deaths are prevented by adding that basic substance called "Slaked Lime".
Past Simple.
1) The crucian was caught by fisherman-amateur, and after that the fish was freed by himself.
2) The owner was run into his lost dog, and, of course, and took it back home.