According to the text, mistakes give us chances to()
A、know the truth
B、learn something new
C、do some experiments
D、teach a child a lesson
He got the milk spilt all over the kitchen floor because he()
A、dropped the bottle
B、was naughty
C、slipped and fell
D、was weak
Task 116. Paragraph①17. Paragraph②18. Paragraph③19. Paragraph④20. Paragraph⑤A. Definition of volunteersB. How volunteers are organizedC. How volunteers contribute to societyD. Why people want to be volunteersE. An organization sending volunteers abroadF. An organization delivering meals to the elderly