Don’t expect _______ abroad this vocation,we may not have enough money A：on going B：to go C：go

Don’t expect _______ abroad this vocation,we may not have enough money A：on going B：to go C：go
A：on going
B：to go
C：going
D：on to go
E：应补印花税额=650000×0.5‰-35=290（元）
应该是哪个?