1415
1618
american
answer
assignment
audience
blackboard
boys
carefully
classmates
classroom
college
competent
discussion
education
explanation
geography
girl
girls
history
homework
indoors
knowledge
korean
learn
lecture
lesson
listen
pencil
positive
presentation
question
school
seminar
serious
smart
south korea
student
students
teaching
teen
teenagers
test
white
write
young