21. A. speakers B. followers C. believers   D. interpreters

　　22. A. group B. number C. amount D. minority

　　23. A. alter B. differ C. shift D. vary

　　24. A. old B. new C. history D. future

　　25. A. want B. pursuit C. demand D. desire

　　26. A. box  B. basket C. bag  D. container

　　27. A. restricted to B. drawn toC. tied up withD. caught up with

　　28. A. range B. scopeC. spreadD. coverage

　　29. A. as a resultB. as a ruleC. in additionD. in fact

　　30. A. globalB. uniqueC. worldlyD. international