Fill in the blank with the correct option. "They could have been delayed by the snow." "Yes, they ______."
A
could have
B
could be
C
could been
D
couldn't have been
Correct Option:
A
Explanation
The full idea is: "They could have been delayed by the snow." "Yes, they could have." The rest of the verb phrase, "been delayed", can be omitted because it is already understood. This is a standard form of auxiliary ellipsis in English.
