Tuliskan 4 kata bantu dalam dialog (Dialognya jangan panjang2 y)

teacher : hello my student, could you help me?

student : yes of course

teacher : you must bring this books to 9 class, you can put this books on the teacher's desk 

student : okay sir..

teacher : after you put this books on the teacher's desk, could you say to your friends to be silence, because i'm still there is important meeting, maybe one hours later the meeting will be finished

student : yeah..  of course

teacher : good job