Answer: C) Must
Explanation for this question is being written.
Answer: D) Must
Answer: A) Must
Answer: B) Mustn't
Answer: B) Obligation
Answer: B) Yes, he must.
Answer: A) He was not allowed to tell his dreams.
Answer: C) I mustn't.
Answer: B) Must
Answer: B) Prohibition
Answer: A) MUST
Answer: C) Mustn't
Answer: C) You mustn't use your mobile phone in class.
Answer: A) False
Answer: A) Mustn't
Answer: B) Must replace.
Answer: B) Don't have to.
Answer: B) MUST
Answer: C) Must, mustn't.
Answer: D) Mustn't
Answer: B) The researchers must explore this approach.
Answer: B) Must not.
Answer: A) You must respect your parents.
Answer: C) Throw
Answer: B) You must study.
Answer: C) Finish