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Exercise 2. Use the Past Perfect Continuous Tense
1. She realized that she _____ (to walk) for a long time.
2. He put down the flowers he _____ (to hold) since he come.
3. We tried to pretend that we _____ (to discuss) our plans.
4. Steven felt tired as he __________ (sail) for several hours.
5. The boys _____ (to play) football all morning.
6. They ______ (wait) at the station for 90 minutes when the train finally arrived.
7. How long _____ (learn / she) English before she went to London?
8. They were very tired in the evening because they _____ (help) on the farm all day.
9. Sally ___________ (type) this text for 3 hours before Mark came.
10. How long ____________ you_________ (watch) TV before you decided to go to bed?
11. Paul and Molly ___________ (talk) on the phone for an hour when the line broke.
12. They _____ (to work) in a newspaper office since they returned.