21. We all agree that ours would be wonderful world if all nations in the world lived in
peace with one another.
A.a; 不填 B.the; 不填 C.a; the D.the; the
22. I just didn't wish to a large note.
A. put you to the trouble to change
B. put you off the trouble to change
C. trouble you to change
D. put you on the trouble of changing