1.The mother looks after her little baby very well.
2.She has brought up her child carefully.
3.We should not throw away the old book.
4.The servant was cleaning the room.
5.The little girl has dropped her toys.
6.He will break the window if he plays football in the room.
7.Do the students answer the questions?
8.They will be mowing the grass tomorrow morning.
9.The teacher had been teaching English for many years.
10.They will have been repairing that road by next year.