Whatthescienceteacherdoesandsays _________ of greatimportance to college students.

_______ honest boy he is ! We all like him.

He is a student，and he plays the piano ．

If you feel tired out and unable to think clearly,that is________you have to get a rest.[ ]

like to go home now— Why not stay here for the night It is solate now ____, it is raining so hard