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on ( ) 15. Let’s _______our old diet. A. to change B. change C. to make D. make 。 on C. fish。 exercise less ( ) 12. Li Ming often plays basketball to keep . A. health B. fit C. good D. well ( ) 13. It’s important _______. A. for us to learn Maths well B. to us to learn Maths well C. for us learning Maths well D. of us to learn Maths well ( ) 14. I always have rice with