Answer: B) Could have.
Explanation for this question is being written.
Answer: A) Could have.
Answer: A) True
Answer: A) Couldn't have taken.
Answer: B) Would have.
Answer: C) Couldn't have done.
Answer: B) Wouldn't have.
Answer: C) Couldn't have.
Answer: B) Could have done.
Answer: C) She couldn't have studied hard enough.
Answer: A) Could have had.
Answer: C) Could wear.
Answer: B) Couldn't have committed.
Answer: B) Could
Answer: D) Had
Answer: D) Could have.
Answer: B) Couldn't have said.
Answer: B) Could not have seen.
Answer: D) If we had seen him at the meeting yesterday.
Answer: C) Wouldn't have.
Answer: D) Couldn't have graduated.
Answer: B) Could have helped.
Answer: B) Could have screamed.
Answer: B) He could understand the exercise.
Answer: B) I could have gone out with you.
Answer: B) Couldn't have been.
Answer: C) Can't have received.
Answer: A) Could've
Answer: B) To talk about an ability to do something.
Answer: C) Couldn't have bought.
Answer: A) Could
Answer: D) Wouldn't have got.
Answer: B) She could have gone to the movies.
Answer: A) 'Could've'
Answer: B) Wouldn't have had.
Answer: C) Could have passed.
Answer: D) Could
Answer: B) Couldn't have done.
Answer: A) Would still have been.
Answer: C) Could have.
Answer: B) Couldn't have known.
Answer: E) Couldn't
Answer: A) Could have worked.
Answer: B) I could have gone to the party if I didn't have to work.
Answer: A) Couldn't have known.
Answer: D) Could have posted.
Answer: B) Couldn't have.
Answer: A) If I knew her number, I could call her.