---Where is Mr. Wu, do you know?---Well, it’s hard to say. But I saw him ___________ a football game just now.
In the cave they found the very book, the cover of _______was torn.
-Excuse me.How long can I keep the book?-You can return it by the end of this month.
Children are having a good time in the park.
I like the MP3, it’s too expensive.A. but B. so C. and
The boy found _____ easy to fly kites.A. that B. it C. this