Объяснение:
1. We have known each other for four years.
2. I always wanted to learn English.
3.Where is Nina?
- She's been home for two hours.
4.Where are the children?
-They are still playing in the yard.
5. My brother has been an engineer for three years.
6. My friend knows English from childhood.
7. I've been watching you for half an hour.
8. Is your brother still sick?
"No, he’s already got better. He’s been studying physics for three days. He wants to get an excellent grade in the exam."
10. I've been trying to find my old notebook for twenty minutes
How I spent my summer holidays.
Summer is my favourite season. Summer holidays give the longest rest from studying at sсhool that’s why I like them so much. In June I stayed at home and my parents were at work. But I was glad because at last I had time for myself. I read books, listened to music, watched films and visited my friend. I spent most days outdoors and got a nice sun tan. Then I spent two weeks in the summer camp on the seaside. It was a real fun. I met a lot of new friends. Every day we enjoyed something special - games, carnivals, competitions, performances. We went to the seaside twice a day. There we swam, lay in the sun, played volleyball on the beach, made sandy sculptures. We had discos every night, but not too long. I guess, those were the most exciting weeks of the summer. They gave me bright impressions, lots of funny photos and some new friends. Then my parents were on vacation and so they took me to my grandparents to the village. It’s a very picturesque place with a forest and a river nearby. I was happy to see my grandmother and grandfather. I spent hot days on the riverbank. Once we went hiking with my parents, made a fire and cooked our meal in it, we also gathered some berries. The summer forest was very beautiful. In the evening I usually helped in the garden. During the last month of the summer I was at home again, relaxing after "such an intensive rest"! I did usual things and prepared for school. I really liked my last summer holidays!