The author writes the passage to______.
A. show us the function of major sports
B. encourage us to go in for green sports
C. discuss the major influence of popular sports
D. introduce different types of environment-friendly sports
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A.songB.bottomC.storyD.cost
A. song
B. bottom
C. story
D. cost
A.deservedB.benefitedC.achievedD.learned
A. deserved
B. benefited
C. achieved
D. learned
A.finallyB.instantlyC.normallyD.regularly
A. finally
B. instantly
C. normally
D. regularly
A.beginningB.introductionC.requirementD.opening
A. beginning
B. introduction
C. requirement
D. opening