1. It is not a good idea to break your promise to the children.
-> You shouldn't break your promise to the children.
2. Every rider is proud to be the race winner although the prize is small.
-> The prize is small, but every rider is proud to be the race winner
3. If we don't hear from you within seven days, the order will be cancelled.
-> Unless we hear from you within seven days, the order will be cancelled.
4. Tony has lived in Vietnam for 2years, but he doesn't know much about the countries
festival.
-> Tom doesn't know much about the countries festival, although he has lived in Vietnam for 2 years.
5. They are obliged to be at home by 9 p.m sharp.
-> They have to be at home by 9 p.m sharp.
6. It is not necessary to set off early today.
-> You don't need to set off early today.
7. It is forbidden for passengers to pass beyond this point. (NOT)
-> Passengers are not allowed to pass beyond this point.
8. Mr. Quynh is the happiest person in the village. (than)
-> No one in the village is happier than Mr Quynh
9. Phong was a quicker walker than his friends. (quickly)
-> Phong walked more quickly than his friends do.
10. Although Hue is far from Hanoi, Peter often travels to Hanoi by motorbike. (but)
-> Hue is far from Hanoi, but Peter often travels to Hanoi by motorbike.
...