happy ,see,again,to,other,they,each,are(连词成句）

happy to see each other again They are happy to see each other again. I'm so happy to see them again.翻译 Matt is happy to see his sister again see前面问什么要加to啊 long to see again LONG TO SEE AGAIN It's happy to see you again.为什么中间要加to?不加不行吗 again,I'm,happy,see,friends,to,so,my,good连词成句 连词成句I,to,happy,my,friend,see,again,old,so,am happy ,see,again,to,other,they,each,are(连词成句） How____ it is to see you again! A. happy B. please C. glad D. pleasant 用 happy we see to are other each again 连个句子 连词成句：I ,see,again,you,am,happy,to,so I am so happy to see them again?的规律是什么 They are happy to see other again的中文意思是什么 i am happy to see you again,这里的不定式是做什么作用啊? ( )How _____it is to see you again!A happy Bplease Cglad Dpleasant How___I am to see you again!A.happiness B.unhappily C.happily D.happy