The traditional view is ______ we sleepbecause our brain is “programmed” to make us do so

I was born in New Orleans, Louisiana, a city name will create a picture of beautiful trees and green grass in our mind．

Which one is________ in your school, football or basketball.

No matter how _____, you can find something animate, a kind of plant, an animal or human being.

If you are a distance learner,it is a good idea to set yourself a ________learning goal for each day or each week. [ ]