英语高手请进,加急!!!!!!!以下句子如何翻译成英语.

1. You have to bet on the weather when you go for vacation to UK.
2. The child was excited that Michael Tordom signed on his T-shirt. / The child was excited in Michael Tordom's signing on his T-shirt.
3. The mother was grateful to the strangers who saved her child's life.
4. The child entered the room, mud on the face.

1.如果你要去英国度假,你就应该在天气方面碰碰运气.
You have to bet on the weather if you plan to go for vocation in UK.
2.这个孩子对让Michael Tordom在自己的T恤上签名感到兴奋.
The kid was very excited to have Michael Tordom signed on his T-shirt.
3.母亲因这些陌生人救了自己孩子的性命而心存感激.
The mother was very grateful to the strangers who saved her kid.
4.这个孩子进了房间,脸上沾满了污泥.
Mud on the face, the kid entered the room.

1:you should talk about wether with strangers if you go Britain for a holiday
(我不知道第一句什么意思，逻辑有些不通，又由于英国人喜欢拿天气搭讪，所以就自作主张翻译了）
2：the kid get excited because of the idiograph Michael Tordom signed on his T-shirt

3:The mother appr