A. flame B. depend on C. radioactivity D. show A. as B. look down upon C. collect picture cards D. get the hang of A. merchant B. elaborate C. the same as D. rice dumpling A. part-time B. tend C. lion D. brush A. on business B. lose weight C. trick or treat D. all one's life A. celebrate B. sports meet C. popular D. snowstorm A. fall asleep B. let off C. journalist D. fountain A. belong to B. off C. self D. pyjama A. insistent B. year C. heroine D. packet A. thing B. cockcrow C. obtain D. process