II. 1. I should go to the airport.
2. I should to learn/study.
3. I should to book a ticket for a plane.
III. 1. I was not hurry up.
2. .. to make a party, we have a good time.
3. .. I can spend my free time with my mother "in the sky".
4. .. I can spend them quietly.
5. .. we can visit interesting places.
6. ... then today the weather is worse.
7. .. we can organize the outside show.
8. .. we have enough money.
Надеюсь помогла!