21. ―Have you heard the story of The Merchant of Venice?
—No. When and where does the story ?
A. take up B. take off C. take on D. take place
22. ―Did you visit the famous cultural relics last month?
—No, we it, but we spent too much time shopping.
A. could have done B. must have done C. can't have done D. shouldn't have done
23. —I failed my driving test again.
—Don't be discouraged. You'll be successful .
A. at times B. at one time C. on time D. in time
