1. Some body will clean the room later.
-> The room will be cleaned later.
2. You mustn't open this parcel until Christmas Day.
-> This parcel musn't be opened until Christmas Day.
3. They can't make tea with cold water.
-> Tea can't be made with cold water.
4. The students will hold a meeting before the Teacher's Day.
-> A meeting will be held before the Teacher's Day
5. People can recycle tires to make pipes or floor coverings.
-> Tire can be recycled to make pipes or floor coverings.
6. They should send applications before December.
-> Applications should be sent before December.
7. The manage must sign the contract today.
-> The contract must be signed by the manage today.
8. They will build the new bridge by the end of the year.
-> The new bridge will be built by the end of the year.
9. We should use cloth bags instead of plastic bags.
-> Cloth bags should be used instead of plastic bags.
10. We can use the garbage to make fertilizer.
-> The garbage can be used to make fertilizer.