KEY Grammar Practice 46-51 pp. 94-105

Practice 46 (p. 94)
Exercise 1
1. has 2. has 3. have 4. has
5. have 6. have 7. have 8. has
9. have 10. have

Exercise 2
1. have not known 2. have enjoyed 3. have begun
4. have written 5. has taken 6. has spoken
7. has given 8. has been 9. have not
10. started 11. have run 12. has bitten
13. has worn 14. have not seen 15. have driven


Practice 47 (p. 96)
Exercise 1
Answers will vary.

Exercise 2
Answers to the questions may vary.
1. Have you ever had to speak in front of one hundred people?
2. How long have you lived in this city?
3. How many times have you had a good job?
4. Why have you not jumped out of a plane?
5. Where have you lived in your life?
6. When have you studied recently?
7. What have you done for fun this week?
8. Have you ever made a difficult decision?


Practice 48 (p. 98)
Exercise 1
1. has risen 2. has covered
3. have sunk 4. have left
5. has rained 6. have never seen
7. has been 8. has purchased
9. has been asked 10. have always swum
11. has left 12. have lived
13. have been 14. have heard
15. have never known


Exercise 2
1. She has studied for the test for five days.
2. He has always lived here.
3. I haven't seen you since you got a job.
4. We have never visited the art museum.
5. They have waited for the letter since Tuesday.
6. You have had that coat since December.
7. The clock hasn't rung for a long time.
8. He has felt sick since he ate some fish.
9. I have avoided you since I borrowed the money.
10. We haven't received a call from her for one month.


Exercise 3
Answers will vary

Practice 49 (p. 100)
Exercise 1
1. She has owned a house since last summer.
2. Eduardo has lived in this city for a year and a half.
3. The twins have been in the hospital since they were born two days ago.
4. My aunt has always been an excellent cook.
5. Sara has never had a car.
6. Gina and Tom have been married for five years.
7. Marco has belonged to the volleyball club since April.
8. He has never belonged to the soccer club.
9. Allison has not lived with her family since the beginning of the year.
10. She has eaten all her mealthes in the university cafeteria since last spring.
11. Andy and his roommate have lived in an apartment near campus for six months.
12. I have been a sales clerk in this department store for three years.
13. Fran has been a student at the English Language Institute since January.
14. Gina has been absent from class since Monday.
15. He has been on a diet for a few months.
16. She has worn the ring he gave her since they got married in 1972.
17. My father has always spoken Spanish.


Exercise 2
Answers vary.

Practice 50 (p. 102)
Exercise 1
1. have you been watching 2. have been living
3. liked 4. has always loved
5. has she studied 6. have you owned
7. has worked 8. have you understood
9. have been eating 10. have you been doing


Exercise 2
1. has been cooking 2. have been writing
3. has she been waiting 4. has looked
5. has been playing 6. have I been exercising
7. have been watching 8. has been living
9. have been expecting 10. have been reading
11. has written 12. have been staying
13. Have you been practicing 14. has been saving


Practice 51 (p. 104)
Exercise 1
1. just 2. ever 3. already
4. already 5. yet 6. ever
7. just 8. just 9. yet
10. already 11. yet 12. ever
13. yet 14. already


Exercise 2
1. My roommate has just come in the door.
2. Haven't you ever checked the oil in this car?
3. She has already applied to three universities.
4. They haven't replied to my request yet.
5. Why hasn't anyone put this meat in the refrigerator yet?
6. Their landlord has just asked them to move.
7. Have you ever had to break bad news to anyone?
8. I haven't balanced the checkbook yet.
9. Why haven't you ever told him how you really feel?
10. We have already seen that romantic movie.