A. fun B. employment C. boom D. assistant A. might B. lesson C. likelihood D. ninety A. on guard B. make sure C. go to D. cruel A. metre B. hardly ever C. timetable D. economic A. how long B. music C. marathon D. erase A. chopsticks B. school C. heart D. band A. kilometre B. rid C. playground D. Everest A. polluted B. sour C. harbor D. Monday A. Chinese B. tent C. avenue D. sportswear A. ran B. misty C. art D. give away