1 the room will be cleaned later
2 this parcel musn't be opened until christmas day
3 tea can't be made with cold water
4 a meeting will be held by the students before teacher's day
5 tires can by recycled to make pipes or floor coverings
6 applications should be sent before december
7 the contract must be signed by the manage today
8 the new bridge will be built by the end of the year
9 cloth bags should be used instead of plastic bags
10 the garbage can be used to make fertilizer
