Answer: C) Must
Explanation for this question is being written.
Answer: A) Must
Answer: B) Mustn't
Answer: C) Mustn't
Answer: D) Mustn't
Answer: D) It's a prohibition/not allowed.
Answer: B) Must
Answer: A) False
Answer: B) Do
Answer: C) You mustn't smoke .
Answer: D) Necessity
Answer: A) Mustn't
Answer: A) We may cancel the picnic.
Answer: A) Must be obeyed.
Answer: A) Must be.
Answer: A) Must be reviewed.
Answer: D) Must
Answer: B) Helping verb.
Answer: C) You mustn't use your mobile phone in class.
Answer: A) Must not park.
Answer: A) Prohibition
Answer: A) If such consequences cannot be foreseen or have to be foreseen.
Answer: A) Must be submitted.
Answer: A) You mustn't look at the lights when you're acting.
Answer: C) Cannot
Answer: A) Aren't supposed.
Answer: C) You must show your ID card when you enter this place.
Answer: C) You mustn't stay.
Answer: C) Must not.