Глагол to be ( part 2 ) выберите нужную форму глагола to be: 1. monopoly ………. a market structure with only a single seller. a) am b) is c) are 2. successful marketers ……… open and flexible. a) am b) is c) are 3. marks & spencer ………. the top brand in britain in 1988. a) were b) was c) is 4. employment agencies ………. aimed at assisting you in finding a job. a) am b) is c) are 5. as long as foreigners ……….. willing to hold american dollars, things remain stable. a) am b) is c) are 6. all staff ……… to wear uniforms. a) am b) is c) are 7. the customers ………… to wait here in this room until the sales manager return. a) am b) is c) are 8. ………. we to offer you the job, would you accept it ? a) were b) was c) have been 9. if we …….. to succeed in this enterprise, we shall need to plan everything very carefully. a) am b) is c) are 10. the manager ……… in his office since 9 o’clock. a) have been b) has been c) was