1.They cut a lot of trees for making papers
->A lot of trees are cut for making papers (by them)
2.Vinh can finish that job immediately
->That job can be finished immediately by Vinh
3.They buy a lot of irons to repair house
->A lot of irons are bought to repair house
4.Hoa and Mai can sing that song beautiful
That song can be sung beautiful by Hoa and Mai
Xin CTLHN <3
