Event is so happy _seeing her old friend again.a.at b.onc.by d.up选?

Event is so happy _seeing her old friend again.a.at b.onc.by d.up选? so is happy feeling is so happy ,let others happy with you Your birthday is not so happy! Wait is so long,but also so happy 英语翻译why is everybody looks so happy还是why is every looked so happy This event is No is sad,is so happy什么意思 So happy because just for you all along is you No man is happy who dose not think himself so it is so happy for me to own Danny is so happy that he looks( )on the train. Actually so long as your happy anything is unimportant. You so to me,you thought that is very happy? He is late again,so his teacher is______(happy) Basketball is a (team) event event Describe a happy event in your life写一篇短文