A. outdoor B. trap C. locked D. in line with A. NASA B. radioactivity C. continuing D. treasure A. challenging B. script C. sleep D. how many A. co-founder B. picnic C. ad D. cough A. out of breath B. by the time C. fact D. formal A. recognise B. secondary C. swimming pool D. suggest A. fire B. twenty-four C. luck D. boss A. livelihood B. a number of C. immigration D. fish and chips A. keep fit B. modest C. interview D. fill out A. at that time B. oxide C. look up D. hard-working