1. Situation : the teacher are explaining the lesson in front of students
Teacher : is it clear ?
A : no miss, will you explain it again ?
Teacher : okay, but please listen to me and be silent this time
A : yes miss
2. Situation : your friend is tell you a story
Your Friend : do you understand what i mean ?
A : yes, so you go home with empty hand because your mother won't buy you anything ?
Your Friend : that's righ
3. Situation : your mother explaining about how to make a fried egg
Mother : first, you will need to prepare a pan that already oiled and put it on the stove, wait for a second until the oil are heated
Mother : then, you should crack the egg onto the oiled pan, give it salt and wait until the egg is done
Mother : do you understand about how to make the fried egg ?
You : sure mom
Mother : good girl