Как правильно написать?1. I‘m tired. I (work) all day.
2. How long (you wait) here?
3. I (stand) here since 6 o‘clock.
4. How long (you learn) Chinese?
5. She (study) English for five years.
6. You‘re out of breath. … (you run)?

1. Have been digging.2. How long have you been waiting 3. Have been standing.4. How long have you been learning 5. Has been studying. 6. Have you been running 7. Have been living. 8. Have you been crying 9. What have you been doing 10. How long have the children been sleeping