21. Could you drive me to the supermarket after supper if _________________?
A. it is convenient of you B. you are convenient
C. it is convenient to you D. you will be convenient
22. _______ his earnings as a football coach, he also owns and runs a chain of sports shops.
A. Except B. Beside C. Apart from D. In addition
23. Enough of it! Nobody here thinks what you are saying should make any ___________.
A. value B. use C. fun D. sense.