Put the verbs in brackets into the Past Simple, Past Continuous, Present Perfect, Past
Perfect, Present Perfect Continuous, Past Perfect Continuous.
21. We ……………………………. (play) football when the snow ……………………………. (start).
22. He ……………………………. (learn) English for ten years now.
23. I ……………………………. (meet) her when we were in elementary school. We ……………………………. (know)
each other for over 15 years.
24. Their children ……………………………. (fall) asleep before their parents returned home.
25. It ……………………………. (rain) all the day long and our roof started leaking.