问题
选择题
—Who left the door open?
— Oh, sorry. I _____ the door.
A．ought to lock
B．should lock
C．ought to have locked
D．could lock
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—Who left the door open?
— Oh, sorry. I _____ the door.
A．ought to lock
B．should lock
C．ought to have locked
D．could lock
答案：C