——How much do you have ____ the bike?——200 A.paid for B.cost C.to pay for
问题描述：
——How much do you have ____ the bike?——200 A.paid for B.cost C.to pay for
知道选C,但是这里是have to do 不得不,还是 to do表目的
答
不得不.和前面的have一起做谓语.