下面句子中错误的地方是哪里并改正

问题描述:

下面句子中错误的地方是哪里并改正
Polly spent much time to watch the video plays.
Shirley decided to win No.1 prize in the speech competition.
I'm sorry I can't find your dog.Maybe it's not live
Did you see him played the trumpet when you came back home
Would you like to take part the sports meeting?

1.to watch 改成 watching
2.No.1 改成 the first
3.live 改成 alive
4.played 改成 playing
5.in the sports meeting