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7 cycling

8 is

9 began

10 used

11 safer

when did you see him last time?

to be afraid, to be tired, to be upset, to be hungry, to be successful, to be busy, to thirsty, to be scared, to be lucky, to be worred 

to think, to go, to sleep, to stay, to run, to want, to get, to sit, to keep, to see