Chủ đề:
Câu điều kiện (Conditional sentences)Câu hỏi:
1, Be hard working or you won't get good marks.
=> If he......
2,Unless he takes these pills, he won't be better.
=> If ....
3,If someone doesn't put the coal in,the fire will go out.
=> Unless....
4,"If I were you,I wouldn't buy this coat" she said
=> She advised...