A. ecosystem B. lively C. lucky D. interesting A. craftsmanship B. what about C. scare D. be concerned about A. pen knife B. derrick C. god D. get up A. far away from B. first floor C. friend D. straightforward A. goodwill B. slow C. likelihood D. roller skating A. all of a sudden B. chat C. basketball D. employ A. Easter B. mule C. running D. how many A. stagger B. truth C. ping-pong D. go wrong A. infections B. not really C. swim D. settlement A. slavery B. emission C. equator D. father