Answer: A) Lack of necessity.
Explanation for this question is being written.
Answer: A) Didn't need/ didn't have to ask.
Answer: B) Don't have to.
Answer: B) Tony needn't buy that house.
Answer: B) Doesn't have to.
Answer: A) Doesn't have to.
Answer: B) Don't need to.
Answer: A) You don't have to pay for water here.
Answer: B) Needs to.
Answer: A) NEED
Answer: C) You needn't fill in this form.
Answer: D) Necessity
Answer: B) Needn't
Answer: A) Don't need to.
Answer: C) Need not.
Answer: A) Didn't need to pay.
Answer: A) We needn't get a visa for Singapore.
Answer: E) Needn't / can.
Answer: A) Don't have to.
Answer: C) We needn't discuss this matter in great detail.
Answer: C) Needn't
Answer: A) True
Answer: B) Need not.
Answer: D) Don't need to.
Answer: C) NEED TO.
Answer: C) Needn't answer.
Answer: B) Didn't need to bring.
Answer: B) You needn't wear formal clothes to the party this evening.
Answer: C) Don't need to.
Answer: A) Needn't
Answer: B) B need.
Answer: D) Doesn't have to.
Answer: A) Need to.
Answer: A) Don't have.
Answer: C) Don't have to.
Answer: B) Won't be.
Answer: B) Lack of Obligation.
Answer: A) Don't need to use.
Answer: B) Sb need do sth.
Answer: B) You don't have to come early.
Answer: A) You don't have to come if you don't want to.
Answer: D) None of them is correct.
Answer: B) No need to do it.
Answer: B) Need to.
Answer: A) Need
Answer: E) Don't have to.