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10 hours in any 24-hour period 72 hours in any seven-day period ten hours in any 24-hour period 88 hours in any seven-day period
2mal/L 3mal/L 4mal/L 5mal/L
approximately six hours around ten hours about eight hours not stated here
work to work to working worked
work to work to working worked
work to work working to working
open opened opening opens
two hours two hours ago I
work to work works worked
worked to work working work
lasted kept continued finished
seem seems seeming seemed
Up to now By the time From then on In the future
14 hours in any 24-hour period 77 hours in any seven-day period ten hours in any 24-hour period 88 hours in any seven-day period
spent; by cost; in took; by took; on