1. The door was so heavy that the boy couldn't open it.
⇒ It was such a heavy door that the boy couldn't open it.
2. If you solve the prolem soon, it will be better for you.
⇒ The sooner you solve the problem, the better it will be.
3. I find it easy to drive a car.
⇒ I have no difficulty in driving a car.
4. It took me six hours to fly from VietNam to America.
⇒ The flight from vietnam to america lasted six hours.
5. He doesn't like coffe and neither do his friends.
⇒ Neither he neither he nor his friends likes coffee.