Поместите глаголы в скобки в Present Perfect Continuous или Present Perfect. 1. He (to be) very busy lately.
1.2. I (to wait) for you since one o'clock in the afternoon.
1.3. How long you (to know) Jane?
1.4. I (not to meet)the Marchands since last year.
1.5. It (to snow) since early morning.
1.6. We (to work) hard for two hours.
1.7. "How long your mother (to teach) at college? - "For fifteen years.
1.8. I (to study) here since five o'clock.
1.9. I (to know) this man for a whole week.
1.10. It (not to rain) since last Tuesday.
1.11. It (to rain) hard since early morning.
1. has been
2. have been waiting
3. have known
4. have not been meeting
5. it has been snowing
6. have been working
7. has been teaching
8. have been studing
9. have been knowing
10. has not been raining
11. has been raining
Объяснение: