1. Knives are used to cut things.
2. A sports meeting is held/had in our school every day.
3. He was praised by the teacher(s) last week.
4. The baby will be looked after well./The baby will be taken good care of.
5. Lights must be turned off when they aren't used.
6. She was seen to go into /enter that building by someone/somebody.
7. That boy was hit by a bus when he was crossing/going across the street.
8. Water can be changed from a liquid into a solid
9. The composition has been finished.
10. She was sent a new pen by her father.