A. week B. structure C. tell D. that A. computer B. cow C. mm D. ever since A. haiku B. turn down C. panda D. racing A. triangle B. cat C. lunar month D. conclude A. tiger B. head C. the United States D. amusing A. broken B. write C. twenty-seven D. look A. precaution B. handkerchief C. knife D. deer A. a B. tangyuan C. pollution D. cash crop A. no B. pardon me C. resin D. embryo A. queue B. unable C. reason D. this