Помогите! СРОЧНО!!!
Исправьте предложения :
Пример:

We going to stay in hotel.
We are going to stay in hotel.

1. How is the Empire State Building tall?
2. You must to buy a ticket.
3. You don't must smoke

1. How tall  is the Empire State Building ? ( не уверена )2. You must  buy a ticket. 3. You  mustn't  smoke