经治疗后，感染继续，眼突仍存在，则最可能是

A．眶骨膜下脓肿

B．艮眶脓肿

C．海绵窦血栓形成

D．颅内感染

E．眶内炎性假瘤

---Isn't that your teacher over there?  

---No, it ______ be him. I'm sure he doesn't wear glasses.  [ ]

A.can't

B.must not

C.won't

D.may not