1415
1618
answer
attentively
audience
blackboard
boys
caucasian
classmate
classroom
competent
discussion
education
exercise
explanation
focused
geography
german
germany
girl
girls
history
homework
knowledge
learn
learning
lecture
lesson
ndoors
notebook
pen
presentation
question
school
schoolchildren
sheets
smart
student
students
task
teaching
teen
teenagers
test
university
young