1. You shouldn't go there alone.
-> You ought not to go there alone
2. How heavy is your father?
-> What is your father's weight?
3. It isn't impotant for you to finish the work today.
-> You don't need to finish your work today
4. Lan didn't go to school yesterday because of her sickness
-> Because Lan is sick
Mình làm đại thoy nha