1. Only when she was going to bed, she remembered that

1. Only when she was going to bed, she remembered that she (to forget) to ring up her friend. 2. We already (to study) seven English tenses. 3. He (to spend) two weeks in Scotland two years ago. 4. I (to buy) a lovely fashionable dress. Now I shall look smart at the party. 5. He (to learn) English before he (to go) to the USA. 6. When she (to spend) all her money, she (to go) home. 7. I (to speak) to my friend yesterday. 8. Look! Kate (to wash) all the dishes. 9. Your mother (to return) from work? Can I speak to her? 10. She (to do) her flat the whole day on Saturday. 11. The cat (to drink) all the milk which I (to give) it. 12. You ever (to be) to Piccadilly Circus? 13. He (not to read) Turgenev since he was a pupil. 14. They (to reach) the river by sunset. 15. I (not yet to receive) an answer to my letter. 16. She is very happy: her son (to finish) school. 17. My brother (to train) at the stadium from six till eight yesterday. 18. My sister (to buy) a pair of nice model shoes this month. 19. I (not to dance) for ages. 20. When Nick (to come) from school, his friends (to play) in the yard. 21. When your sister (to go) to London? 22. My friend just (to recover) after a serious illness. 23. I never (to be) to the Bahamas. 24. At this time yesterday we (to talk) about you.