Câu trả lời:
1. He is a slower and more careful driver than I am
He drives slowlier and more carefully than I do.
2. It takes me an hour to do my housework every evening.
I spend an hour doing my housework every evening.
3. No one can run faster than me.
I am the fastest runner
4. Do you have a better refrigerator than this?
Is this your worst refrigerator?
5. It is not necessary for you to finish the work today.
You don’t have to finish to work today.
6. Lan didn’t go to school yesterday because of her sickness.
Because Lan was sick, she didn't go to school yesterday.