Помогите пожалуйста. Раскройте скобки , употребляя глаголы в Present Perfect или Past Indefinite. 1. It ( to be) very

1. It was very cold yesterday. 2. When did you meet him? 3. I haven\'t (have not) seen him since 1987. 4. How many mushrooms have you gathered? 5. Where have you put the newspaper? I want to read it, but cannot find it anywhere. 6. The new school began working last year. 7. At last I have done all my homework: now I shall go out. 8. The building of the house have begun early in April. 9. The rain has stopped but a cold wind is still blowing. 10. We have already solved the problem.