Answer: A) Needn't have washed.
Explanation for this question is being written.
Answer: A) Needn't have taken.
Answer: B) You needn't have left the house in such weather.
Answer: A) Needn't take.
Answer: B) Yes, you needn't have made so many sandwiches.
Answer: A) You didn't need to have brought your laptop.
Answer: A) Needn't have brought.
Answer: B) I needn't have looked for a babysitter.
Answer: A) Didn't need to tell.
Answer: B) Didn't need to do.
Answer: B) Didn't need to work.
Answer: D) You took lots of warm clothes there but it turned out not necessary.
Answer: A) Needn't
Answer: B) False
Answer: A) Needn't have called.
Answer: B) Needn't have taken.
Answer: C) Needn't have done.
Answer: C) Needn't have added.
Answer: C) Needn't have gone.
Answer: B) Needn't have bought.
Answer: D) Needn't have worn.
Answer: D) Needn't have.
Answer: C) Needn't have called.
Answer: D) Needn't have worried.
Answer: C) Didn't need to buy.
Answer: B) B needn't have.
Answer: B) Needn't have hurried.
Answer: A) Needn't have made.
Answer: B) Needn't have watered.
Answer: C) Didn't need to go.
Answer: A) She needn't have arrived so early.
Answer: A) Needn't have worn.
Answer: D) Didn't need to.
Answer: A) Needn't have packed.
Answer: D) Saying that something happened but wasn't necessary.
Answer: C) Needn$^{'}$t have spent.
Answer: A) Needn't have bought.
Answer: A) Needn't have cleaned.
Answer: C) Didn't need to prepare.
Answer: B) Someone did something, but it wasn't necessary.
Answer: A) I needn't have got up early.
Answer: C) Needn't have rushed.
Answer: A) 4. A. needn't have worn.
Answer: C) Needn't have.
Answer: C) Because it wasn't cold.
Answer: A) Didn't need to hurry.
Answer: B) I needn't have done my homework.
Answer: A) Needn't/ need not.
Answer: D) Needn't have brought.
Answer: B) Needn't have worried.
Answer: B) Needn't have.
Answer: A) True
Answer: D) Needn't have walked.
Answer: A) We needn't have filled up the gas tank.