Question

Complete the sentence:
A: Did you go to the concert last night?
B: No. We ______ but we decided not to.

• A. can have gone
  
• B. will have gone
  
• C. could have gone
• D. may have gone
  

Answer 1

Answer: (C)

could have gone

'Can' indicates present ability.
'Will' indicates surety.
'Could' indicates ability in the past / possibility.
'May' indicates slight possibility.
The given statement indicates possibility in the past. Therefore, the correct option is C) could have gone.