A. therefore B. NASA C. exact D. reflector A. space B. philosopher C. choke D. no mobile phone A. century B. switch off C. lift off D. nearby A. burn B. smoke C. fussy D. thirteen A. methylated B. social C. coconut D. atmosphere A. impress B. trader C. robot-arm D. behaviour A. good night B. fast-food restaurant C. unlikely D. endeavour A. treat B. rob C. root D. premise A. police B. consult C. shuttle D. imaginary A. dubious B. go climbing C. grab D. platform