1.My father is interested in reading magazines.
->My father enjoys reading magazines
2.John is too young to decide himself.
->Jonh isn't too old to decide himself
3.What about using gas instead of burnin coal?.(suggest)
⇒ Isuggest using has instead of burning coal.
4.I don't find it difficult to stay up late.(used)
->I used to stay up late.
5''Please, open the window, Nam'' said his brother.(asked)
⇒Nam asked His brother to open the window
6.What sort of weather did you have on holiday?.(like)
->What was the weather like during your hoilidays ?
7.The question wasn't as hard as he thought.(than)
->The question was hard than he thought