to have something done 是固定搭配.cut 的过去分词还是cut.所以选B
例如：I have my bicycle repaired.也有have something do的呀，还有have something doingHave something to do 是还有什么是要做。如：I have some home work to do.have something doing？这里my grandpa went是过去时，已经去过了，所以是have something done.