I.
1. D
2. C
3. A
4. B
5. C
6. B
7. D
8. A
9. C
10. A
II.
1. My friends don't go to school by bus.
2. The library opens at 7:30 AM.
3. Students aren't having a break right now.
4. I am studying English at the moment.
5. Look! Our parents are waiting outside.
III.
1. A
2. B
3. C
4. C
5. A
6. C
7. B
8. A