1. Вставьте предлоги for или since, переведите предложения на русский язык. Например,
I have lived here (for/since) 1990.
I have lived here since 1990.- Я живу здесь с 1990 года.
1. He has worked (since/for) May.
2. They have been friends (since/for) they started college.
3. I left Moscow last year and I have not seen him (since/for).
4. He has studied French (since/for) 10 years.
5. My mother has worked at the factory (since/for) some years.
6. I have known nothing about him (since/for) several months.