SUBJECT : Present Perfect vs Present Perfect Continuous
A)Use PRESENT PERFECT CONTINUOUS TENSE to fill in the blanks:
1.I’m tired, because I …… have been working ………. (work) very hard.
2.He ………………………………………… (write) letters all morning.
3.Catherina is getting fatter because she …………………………………… (eat) too much.
4.My mother ………………………………………….. (peel) the potatoes all afternoon.
5.Cathy …………………………………………… (attend) a cookery course since March.
6.How long …………… you ………………………………………….. (learn) English?
7.Where are my eye-glasses?I …………………………………………….. (look) for them for an hour.
8.Charles ………………………………………………. (escape) from the police for years.
9.How long …………… you ………………………………………… (use) a computer?
10.Elizabeth ………………………………………….. (live) with Mike for three years.
11.She ………………………………………………. (earn) quite a lot of money for the last two years.
12.It …………………………………………………. (rain) fro six hours.

2. He HAS BEEN WRITING letters all morning.3. Catherina is getting fatter because she HAS BEEN EATING too much.4. My mother HAS BEEN PEELING the potatoes all afternoon.5. Cathy HAS BEEN ATTENDING a cookery course since March.6. How long HAVE you BEEN LEARNING English?7. Where are my eye-glasses? I HAVE BEEN LOOKING for them for an hour.8. Charles HAS BEEN ESCAPING from the police for years.9. How long HAVE you BEEN USING a computer?10. Elizabeth HAS BEEN LIVING with Mike for three years.11. She HAS BEEN EARNING quite a lot of money for the last two years.12. It HAS BEEN RAINING for six hours.