Answer: A) Must
Explanation for this question is being written.
Answer: B) Must
Answer: B) Mustn't
Answer: C) Must
Answer: B) Must/ mustn't.
Answer: C) Mustn't
Answer: A) He must finish his homework.
Answer: D) Must
Answer: C) You mustn't.
Answer: A) Have to / must.
Answer: B) Must not.
Answer: A) Mustn't
Answer: A) They must practice it.
Answer: A) I must call him immediately.
Answer: B) Obligation
Answer: A) You must give each question no more than 2 min.
Answer: B) Obligation or permission.
Answer: A) Mustn't / will.
Answer: D) Something was to be done, and possible punishment could follow if the task wasn't to done.
Answer: A) Must not.
Answer: C) Must not.
Answer: C) He needs a dictionary.
Answer: D) Must be completed.
Answer: C) You are not allowed to take pictures in the museum.
Answer: A) Must be reviewed.
Answer: B) It is forbidden to do it.