We can never expect ________ bluer sky unless we create ________ less polluted world.(2009·安徽)
Every athlete as well as some coaches who ____ to go to the Games ____ asked to be here before 7:30 am.
His parents both died in the traffic accidents, ________ him a lot of debts.
--- I’m not good at singing, you know. --- ________! It’s just for fun.
—Shall I give you a ride as you live so far away?—Thank you,____________.
The beautiful scenery around the lake __________ him to write this famous poem.