A.motivation
B.motivator
C.motivational
D.motivate

A.The last time he ate Chinese food was for two months.
B.He didn't eat Chinese food two months ago.
C.He has eaten Chinese food for two months.
D.He hasn't eaten Chinese food for two months.

A.She should buy this house next week.
B.She must buy this house next week.
C.She doesn't have to buy this house next week.
D.She may buy this house next week.

A.How is daydreaming different from sleeping?
B.Can daydreams reduce the hours we sleep?
C.Who daydreams more, men or women?
D.Why is daydreaming good for people?

A.How is daydreaming different from sleeping?
B.Can daydreams reduce the hours we sleep?
C.Who daydreams more, men or women?
D.Why is daydreaming good for people?

A.scientists
B.pictures
C.devices
D.parts

A.one's immediate environment
B.the outside part of the brain
C.several regions of the brain
D.the default mode of thinking

A.routine actions
B.a person's immediate situation
C.itself
D.appropriate relationships

A.drag
B.consume
C.question
D.celebrate

A.new invention
B.a solution to a problem
C.a way to act in a relationship
D.a job that needs close attention