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Doing eye exercises   one of the usual ways to protect our eyes.A. Is  B. are C. were D. am

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None   Nothing   No one   Neither  
is good at    is good for    are good at    are good for  
close    closed    open    opened
  
None  Nothing  No one  Neither  
good to   good for   good at   good with  
Do exercise is    Doing exercise is    Do exercises are    Doing exercises are  
compulsory    beneficial    of little benefit    considerate  
exercises; at    exercise; at    exercises; in    exercise; in  
regular    usual    common    regulation  
benefits; benefit from    benefits to; benefit    benefits from; benefit    benefits; be benfited from  
benefits; benefit from    benefits to; benefit    benefits from; benfit    benefits; be benfited from  
Do;exercise is   Do;exercises is  Doing;exercises are   Doing;exercises is  
exercise, exercises    exercises, exercise    exercise, exercise    exercises, exercises  

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