来自鲍居武的问题
_____isexcitingtojointhedanceclubontheweekend.a.Heb.Thatc.Itd.Here
_____isexcitingtojointhedanceclubontheweekend.a.Heb.Thatc.Itd.Here


_____isexcitingtojointhedanceclubontheweekend.a.Heb.Thatc.Itd.Here
_____isexcitingtojointhedanceclubontheweekend.a.Heb.Thatc.Itd.Here
c
It是形式主语,后面jointhedanceclub是逻辑主语