Without enough food, many birds didn’t ________ the winter.
__________ at my classmates' faces, I read the same excitement in their eyes.
__________ is known to everybody , light travels faster than sound.
This kind of ancient book requires a great deal of .
—My deskmate accused me breaking her glasses.—Oh,you had the right to defend yourself her accusation.
Life has become so easy for children today that they the spirit to work hard.