Correct the sentences. Эталон: He received a lot of Christmas letters.

1. I have a lot of parents in Madrid. - I have a lot of relatives in Madrid.

2. I think that maths is an easy signature. - I think that maths is an easy subject.

3. We always watch the notices on television after dinner. - We always watch the news on television after dinner.

4. The concert was a big exit, all the fans were happy. - The concert was a big event, all the fans were happy.

5. The weather forecaster advertised drivers about the heavy rain. -  The weather forecaster warned drivers about the heavy rain.