凡病变部肿块坚硬如石，高低不平，状似岩突，破溃后疮口蹭凹陷很深，形如岩穴属于什么疾病（）

A.石

B.瘤

C.瘿

D.痰

E.岩

---You____ part in the party on time.

--- Sorry, I was delayed by the accident.

A．are supposed to take

B．have supposed to take

C．are supposed to have taken

D．supposed to take