Are you happy to see each other?这句话中to 起什么作用 为什么不是for?

we are happy to see you They are always happy to see you.____ when i see you are happy,it will be the time to leave you. They are happy to see each other i'm so happy to see it .Maybe you are right ,we love ourselves Happy to see you.的同义句要换Happy Happy to see you,I will be happy!中文意思 I come to see you,and i hope you can be happy everyday!You are my friend forever! 短文改错 Animals never seem to have bad bays.They are -------- always happy to see you .Scientists 短文改错 Animals never seem to have bad bays.They are --------always happy to see you .Scientists say play with a pet -------- Are you happy to see each other?这句话中to 起什么作用 为什么不是for? 英译汉 We are happy to see you back.make sentences with Dose Tom learn to use these three words? nancy it's happy to see you ,to. i could never be to happy to see you They are happy to see each other again. happy they to each are see other 排句子happy they to each are see other排句子 I'm calling to say happy birthday和I'm calling to see how you are.第二句怎么用seeI'm calling to say happy birthday和I'm calling to see how you are.第二句怎么用see 而且how you are 怎么不是how are you 呢 I hope to see you happy every day of living. i'm very happy to see you s___