A. leave B. product C. earn one's living D. perch A. firework B. set off C. therefore D. several A. fox B. other C. leave behind D. pack up A. discover B. calculate C. footprint D. block out A. a bunch of B. planet C. exceptionally D. fifteen A. own B. set out C. Arab D. derrick A. sincerely B. thirtieth C. quite D. training A. soccer B. adore C. flee D. cough A. Spring Festival B. lake C. special D. real-life A. in particular B. hurry up C. grass D. any time