nancy it's happy to see you ,to.

nancy it's happy to see you ,to. It's happy to see you again.为什么中间要加to?不加不行吗 It's glad to see you.回答： it's good to see you back. it's good to see you It is happy to see you. to see you是主语,为避免? Happy to see you.的同义句 we are happy to see you You know why it's hard to be happy?It's because we refuse to It's lovely to see when i see you are happy,it will be the time to leave you. It’s glad to see you again句子成分分析