Service expectations of customers should be notified to keep the customers satisfied day after day.

she could put on music that makes her sleep

i'm a frog i'm a frog i read about frogs i breath thee frogs the frogs are great but not me

two factors or characteristics of a chapter that might make it difficult to read would be words i don't understand, or if i don't fully understand what's going on in the chapter. strategies i can use to get through the difficult material would be a dictionary, and re-reading previous chapters to get a better grasp of what the author is trying to say.