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.