Thank you for your offer which I am please to accept. I am looking forward to joining the company.
I‘m pleased to accept the offer. Thank you.
I'm very glad to receive this good news and looking forward to work with you guys....
My gratitude goes to your kind offer which I'm pleased to accept.Look forward to joining you!
言简意赅 表示出你接受的意思就可以了
另外可以附上你想咨询的其他问题
祝成功~