Да все 1. _ you ever been to Moscow?
2. I can't do this exercise, it's _ hard.
3. I'm very hungry. I _ anything for a long time.
4. If I _ you, I _ never do this.
5. I'm sorry, I'm late, _ i come in?

1. Have

2. so

3. haven't eaten

4. were, would

5. may/can

Have you ever been in Moscow?

I can't do this exercice, it's too hard.

I'm very hungry. I eat anything for a long time.

If I were you, I'd never do this.

I'm sorry, I'm late, can I come in?