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UNIDADE 52
Ex. 1
1. Tom refused TO GIVE me any money.
2. Jill has decided not TO BUY a car.
3. The thief got into the house because I forgot TO CLOSE the window.
4. There was a lot of traffic but we managed TO ARRIVE to the airport in time.
5. One day I´d like to learn TO PILOT an airplane.
6. I shouted to him. He pretended not TO HEAR me, but I´m sure he did. 
7. Why hasn´t Sue arrived yet? She promised not TO BE late. 
8. Our neighbor threatened TO CALL the police if we didn´t stop making noise.
9. Ann offered TO TAKE care of our children while we were out.
10. The teacher was very strict. Nobody dared TO TALK during his class. 
11. I don´t need TO GO to the meeting, do I?
12. Oh no! I meant TO BUY some eggs, but I forgot.
Ex. 2 – Nota: To seem = parecer
1. Is Tom worried about something? He seems to be worried about something.
2. Does Ann like Jack? She appears to like Jack. 
3. Is that man looking for something? He appears to look for something. 
4. Has that car broken down? It seems to have broken down. 
5. Have they gone out? They appear to have gone out. 
Ex. 3
1. Have you decided WHAT TO COOK for dinner this evening?
2. Can you show me HOW TO USE the washing machine?
3. Do you know WHAT TO DO if there´s a fire in the building?
4. You´ll never forget HOW TO RIDE a bicycle one you´ve learned.
5. I was really astonished (surpreso). I didn´t know WHAT TO SAY. 
Ex. 4
1. Not many people can afford to take risks. 
2. I would like to learn how to drive well. 
3. One day I hope to write a book.
4. I wouldn´t dare to discuss with my boss in a public place. 
5. Sometimes I tend to eat a lot of candies. 
6. I intend to be a good teacher.