1, The boy is standing there. He is Tommy( Who)
The boy...who is standing there is Tommy
2,The storm destroyed the town completely.
The town....was destroyed by the storm completely
3, If you don't keep your feet warm, you will be ill
Unless you keep your feet wram, you will be ill
4, Drive carefully or you may have an accident.
If.....you don't drive carefully, you may have an accident.
5," How do you improve your English, Hoa?" the teacher asked
The teacher asked. Hoa how she improved her english