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catch up with waste kill save
What do you think has happened to Tom What do you think Tom has happened Do you think what has happened to Tom Do you think what Tom has happened
certain; certain certain; sure sure; certainly certainly; surely
pass have passed will pass are passing
Being improved Improved To be improved Having improved
afraid surprised sure sorry
catch up with waste kill save
clever enough enough clever too clever too clever
had been preparing was preparing is preparing has been preparing
pass has passed have passed to pass
Making sure To make sure Having made sure Make sure
is sure to come will be sure to come be sure to come to be sure to comE.
certain; certain certain; sure sure; certainly certainly; surely
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