A: hello B
B: hi A
A: what are you doing here?
B: i do my home work
A: owh sorry for distrub you
A : hello B
A:hello b, b : hello a,a:how are you today ? b:i feel good,and you? a : verrywell thank you,I want to do homework.b : sorry to bother you to do homework.a : good-bye, good-doing your homework.b :good bye