Jawaban:

1. Obligation: you must stop when the traffic light was red

Prohibition: You mustn't cross the line when the traffic light was red

Sugesstion: you should obey the traffic rules

2. Obligation: You must prepare your documents before check-in to the airplane

Prohibition: you mustn't overtake the queue to check in

Sugesstion: you should check everything before check in

3. Obligation: you must be orderly during ceremony

Prohibiton: you mustn't be noisy during ceremony

Sugesstion: you should wise during ceremony

4. Obligation: you must focus when you are drive

Prohibition: you mustn't use your phone when drive

Sugesstion: you should put the phone when you are drive

semoga membantu-!