I'm looking forward to seeing you,为什么to的后面是动词ing形式啊?英语高手帮帮忙!

I'm looking forward to tomorrow I 'm looking forward _________the summer holiday i'm looking forward to it I'm really looking forward to the I 'm looking forward to my miracle. I'm looking forward to hearing from him.翻译 I'm looking forward to seeing you again a special life i`m looking forward to 英语作文 I'm looking forward ____ the summer holidao. I'm looking forward to your incomparable什么意思 怎么回答i'm looking forward to seeing you I'm looking forward to the day we have I'm looking forward to visiting the Great Wall. I'm looking forward to是固定搭配吗 looking forward i full of I’m looking forward to seeing you this summer vacation为什么加forward?直接looking to为什么不行? 求高人纠正.I look forward to from hearing from u.I look forward from hearing from u.这个句子正确吗?我可以说I'm looking forward to hearing from uI'm looking forward to from hearing from u. 请问为什么是i'm looking forward very much to doing sth,而不是 i'm very looking forward to dong sth