tìm lỗi sai và sửa lại:
1.I think we ought to put the telephone among the television and the radio. ->
2.You must not let children to play in the kitchen because it's a dangerous place. ->
3.I can't stay in bed tomorrow morning because I mustn't go to work. ->
4.I don't know why don't you answer the teacher's question. ->
5.We are going to have some friends to lunch tomorrow. ->
6.The customer's name was Mrs Lien and she wants to speak to Mr Nam. ->
7.Bell worked with people who would neither speak or hear. ->
8.The population of the world rises very fast. ->
9.A liar is someone who isn't telling the truth. ->