I'm happy _____ see you here a.to b.of c.for d.with 为什么选“a”?

I'm happy _____ see you here a.to b.of c.for d.with 为什么选“a”? i'm very happy to see you s___ 改错i‘m very happy see you.为什么 I'm so happy to see them again.翻译 i .want to make you happy because see you smile so i'm happy See you out here,I'm happy,hope you can be happy!Always I’m very happy（）you.to see seeing see选择 I'm really happy! I'm so happy again,I'm,happy,see,friends,to,so,my,good连词成句 i'm so happy to see it .Maybe you are right ,we love ourselves I'm very happy to see you s_____(完形填空) I'm sure grandpa will be very happy ____(see) us _I see these photos,I'm very happy.A、When B、Where C、Why D、How I'm very happy to see that you have learned from others I'm very happy to see that you have learned from others Happy to see you,I will be happy!中文意思 I'm very happy _____(invite)you to the farewell party