关于2个简单的中译英的问题,急需.

1. May I take part in?
2 where是什么意思,用在这里?
---Welcome to my home.
---Thank you for your invitation.谢谢你的邀请.

1.我可以参加吗?
Can I join it?

2别人对你说Where welcome to my home.你该怎么用英语答复?(中文带上)
Thank you for your kindness.谢谢你的好意.

1,may i join in ?
2,thank you !

Thank you for your home.