Нужно вставить don't/doesn't have to
3.Akiko /work on Thursdays. It’s her day off
4.Guests /check out until 12 noon
5.Staff /wash their hands in the food preparation sinks
6.Room attendants /change the towels every day
7.Staff smo0ke in the kitchen
8.Staff /be rude tj customers
9.Reception staff /keep guests waiting