A. shop B. always C. sincerity D. diploma A. Christmas tree B. cheaply C. organic D. on purpose A. paper cutting B. forest C. classroom D. pass off as A. chew B. link C. play with D. independently A. stone B. millimeter C. stop D. first A. uncomfortable B. farmer C. growth D. consume A. children B. packet C. run out of D. come on A. establish B. look out C. tough D. erase A. nonverbal B. enthusiastic C. embarrass D. get out A. favour B. be afraid of C. tangyuan D. a lot