Todas

Answers to Exercise 10:
1. Will it have happened by then? It will not have happened by then. Will it not have happened by then? Won't it have happened by then? It will have happened bythen, won't it?
2. Will you have paid the rent? You will not have paid the rent. Will you not have paid the rent? Won't you have paid the rent? You will have paid the rent, won't you?Answers to Exercise 11:
1. shall have gone or will have gone 2. will, have arrived 3. Will, have eaten 4. Will, have sent 5. will have found 6. will, have slept 7. Shall or Will, have seen 8.Will, have solved 9. shall have received or will have received 10. Will, have sold 11. Shall or Will, have studied 12. will, have fed

Answers to Exercise 12:
1. will have been arguing 2.shall have been touring or will have been touring 3. will have been wondering 4. shall have been taking or will have been taking 5. will have been snowing 6. will have been longing 7. willhave been giving 8. shall have been holding or will have been holding

Answers to Exercise 13:
1. Will he have been guarding the luggage? He will not have been guarding the luggage. Will henot have been guarding the luggage? Won't he have been guarding the luggage? He will have been guarding the luggage, won't he?
2. Will they have been preparing the meal? They will not havebeen preparing the meal. Will they not have been preparing the meal? Won't they have been preparing the meal? They will have been preparing the meal, won't they?

Answers to Exercise 14:1. will have been offering 2. Will, have been snowing 3. shall or will, have been planning 4. Will, have been hoping 5. shall have been visiting or will have been visiting 6. will, havebeen developing 7. Will, have been clipping 8. Shall or Will, have been seeing 9. will have been waiting 10. Will, have been lying 11. Will, have been playing 12. will, have been living