A. cosmology B. mad C. Chinese book D. wallet A. pet B. lie C. appoint D. lab A. the same as B. explode C. murder D. contents A. burrow B. polluted C. duck D. endless A. pest B. fair C. all the best D. savings A. amber B. in particular C. affair D. sack A. keep a secret B. went C. outlaw D. seem A. foolish B. bag C. cheaply D. mend A. villager B. meanwhile C. thrive D. conflict A. turn off B. earthquake C. crash D. impossible