21. ----Shall we go to the art exhibition right away?
----__________
A. It’s your opinion B. I don’t mind C. It’s up to you D. That’s your decision .
22. The word “USA”______ “the United States of American”.
A. is short of B. has short of C. has short for D. is short for
23. What do you think __________ when I meet something like this?
A. I should do B. should I do C. that I should do D. do I
