问题
选择题
. ------ The door was open.
----- It ___________open. I had locked it myself and the key was in my pocket.
A．can’t be
B．mustn’t be
C．can’t have been
D．mustn’t have been
答案
答案：C
搜题请搜索小程序“爱下问搜题”
. ------ The door was open.
----- It ___________open. I had locked it myself and the key was in my pocket.
A．can’t be
B．mustn’t be
C．can’t have been
D．mustn’t have been
答案：C