Correct the sentences. Образец:  He received a lot of Christmas letters. He received a lot of Christmas cards. 1. I have a lot of parents in Madrid. ... 2. I think that maths is an easy signature. ... 3. We always watch the notices on television after dinner. ... 4. The concert was a big exit, all the fans were happy. ... 5. The weather forecaster advertised drivers about the heavy rain. ...