网址：http://m.1010jiajiao.com/timu3_id_2426224[举报]
---There _____ anybody in the room.
--- Why do you say so?
--- Because the door is locked.
A. must not be B. can’t have C. can’t be D. may not be
－There ________ anybody in the room．
－Why do you say so?
－Because the door is locked．
A．must not be
B．can't have
C．can't be
D．may not be