EGP #1231 | B2 | MODALITY / could Can use 'could have' + '-ed' to speculate about the past. Lexical range: N/A
她可能已经被杀了。
She ___could ___have been killed.
他可能坐错了车。
He ___could ___have taken the wrong bus.
他们可能忘了今天有约。
They ___could ___have forgotten about the appointment.
她可能早就回家了。
She ___could ___have gone home already.
门可能整晚都没锁。
The door ___could ___have been left unlocked all night.
