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.

L.Only when she was going to bed, she remembered that she had forgotten to ring up her friend. 2. We have already studied seven English tenses. 3. He spent two weeks in Scotland two years ago. 4. I bought a lovely fashionable dress. Now 1 shall look smart at the party. 5. He had learned English before he went to the USA. 6. When she had spent all her money, she went home.7. I  spoke to my friend yesterday. 8. Look! Kate has washed all the dishes. 9. Has your mother returned from work? Can I speak to her? 10. She was  doing her flat the whole day on Saturday. 11. The cat has drank all the milk which I had given it 12. Have you ever  been to Piccadilly Circus? 13. He has not read) Turgenev since he was a pupil. 14. They had  reached the river by sunset. 15. I have not yet received an answer to my letter. 16. She is very happy: her son has finished school. 17. My brother was training at the stadium from six till eight yesterday. 18. My sister has  bought a pair of nice model shoes this month. 19. I have not danced for ages. 20. When Nick  came from school, his friends were playing in the yard. 21. When did  your sister  go to London? 22. My friend has  just recovered after a serious illness. 23. I have never been to the Bahamas. 24. At this time yesterday we were talking about you.