1. I suggest you drink less coffee late at night.
--> You should drink less coffee late at night.
2. You should eat more fruit and vegetables.
--> Why don't you eat more fruit and vegetables?
3. The suitcase isn't light enough for the boy to lift up.
--> The suitcase is too heavy for the boy to lift up
4. We began to study English 5 years ago.
--> We have studied English for 5 years
5. The coffee is so strong that i can't drink it.
--> The coffee is too strong for me to drink
6. We were too late to see the first film.
--> We weren't early enough to see the first film.
7. When did you begin to study English?
--> How long have you studied English?
8. Nga started to keep this dog 4 years ago.
--> Nga has kept this dog for 4 years
9. My room and my sister's are not the same.
--> My room is different from my sister's room