(2013·北京东城区高三教学统一检测)—Mum, I’m tired.—Well, if you ________ go to bed after midnight every night, what do you expect?

How was your school trip—It was ________ but a little bit tired.

Remember this, children. ________ you study, ________ knowledge you will get.—We know, Mr. Green.

_______you’ve got a chance, you might as well make full use of it

Elephants have their own way to tell the shape of an object and____it is rough or smooth.[ ]