1. She hasn't met her parents for 3 years.
-> S + last + V2/ed.... = S + have/ has + not ....
2. How much is this shirt?
-> How much does this shirt cost?
3. She doesn't need to clean the house twice a week .
-> She doesn't have to clean the house twice a week.
-> necessary = need = have to
4. Nam hasnt eaten that food for 2 weeks.
-> S + last + V2/ed.... = S + have/ has + not ....
5. We don't need to plant these trees.
-> We don't have to plant these trees.
6. What is the price of an ice-cream?
-> What + tobe the price + of = How much + tobe + S
7. Nam is my brother.
8. We are going to watch TV tonight.
-> We plan to watch TV tonight.