ANSWER KEY – 9 PRESENT PERFECT CONTINUOUS (I’ve been cooking)
EXERCISE A
1. It has been raining since 3 o’clock.
2. He has been playing chess since he was 10.
3. I’ve been working since 8 o’clock.
4. Helen has been looking for another job for two months.
5. We have been waiting for two hours.
EXERCISE B
1. for a long time
2. for more than ten years
3. since the beginning of the month
4. for several years
5. since we wrote to them last week
6. since the last time that I saw you
7. for more than two hours
8. for a few days
EXERCISE C
1. I’ve been staying
2. I’ve been waiting
3. She’s been talking
4. I’ve been having
5. have you been looking
6. I’ve been applying
EXERCISE D
1. It has been raining for hours.
2. We have been playing this game for hours.
3. Wendy has been studying French at school for three years.
4. I’ve been reading this book for months.
5. We’ve been watching this programme for hours.
6. The people next door have been making a lot of noise all day.
7. I’ve been saving my money for a holiday.