I am forward to doing it

i am looking forward to什么意思 I am looking forward to your I am looking forward to sightseeing 对吗 I am forward to doing it look forward to 与 look forward for 区别,比如：I am looking forward （ ） it. 到底是 I look forward to doing 还是 I am l到底是I look forward to doing还是I am look forward to doing? i am really looking forward to () you again I am looking forward to football match tomorrow.同义句 i am looking forward to going()（ski）this winter Ok I am looking forward to your intevation是什么意思 I am looking forward to working with you I am looking forward to be your good friend I am _________a holiday next week .(look forward to) I am Iooking forward to hear from you soon now 我盼望很快见到你英语.是I am looking forward to还是I look forward to? --What are you doin now?--I'm writing to my cousin.He moved to America two weeks ago.He must be--What are you doin now?--I'm writing to my cousin.He moved to America two weeks ago.He must be_____receiving my e-mailA.listening toB,looking forward toC. look forward to 常用进行时态和一般时态有什么区别?i am looking forward to your replyi look forward to your reply 讨论：I am looking forward to your reply!I am looking forward to hearing from you!这两句话用在写信上哪一句会更好?