A. acid rain B. obstinately C. photographer D. bedroom A. brightness B. subdue C. in a low voice D. fantastic A. millennium B. remove C. hamster D. father A. silence B. picture C. surprise D. make one's bed A. animal B. aurochs C. policeman D. enthusiastic A. wit B. bubble C. election D. e-friend A. stone B. ambitious C. Chinese New Year's Eve D. linguist A. exactly B. usage C. trader D. knock A. storm B. wash C. completely D. germ A. process B. busman C. manager D. sum