Generally,students' inner motivation with high expectations from others________essential to their development.
It's cold. Jackson, shut the door,__________?
Relax yourself every day,__________ you'll be too tired to get good grades.
-Goodbye, John. Come back again sometime. -Sure. __________.
-Mr. Gorden asked me to remind you of the meeting this afternoon. Don't you forget it! -OK, I __________.
__________,I think, and the problem could be settled.