Что такое притяжательные местоимения сказали учить, а меня не

Притяжательные местоимения -- аналогичные русским. Мой -- my, твой -- your, его -- his, eё -- her, наш -- оur, ваш -- your, их -- their

1. BBC is a well-known (broadcasting) company.
2. She could give no (explanation) to the police.
3. The 4th of July is the (national) Independence Day of the United States.
4. Could you tell me about Christmas (celebrations) in your town?
5. He has got the third (threatening) letter from the stranger.
6. (Pollution) is one of the most serious and crucial world's problems.
7. It was a very (dangerous) journey.
8. Have you read the article about the space (exploration)?
9. It's a (lovely) day, isn't it?

Her mistake was forgiven and forgoten. What foreign language is tought in your school? This book is spoken about a lot. What country is described in this article? When will the report be prepared? He was taken to the theatre the first time when he was a child. Why so many questions were asked?the results of the text were declared to us. By whom was the doctor send for Yesterday? When will this work be finished? The knowledges of the students are checked every day. Why are these exercises aren't done on time?