{{B}}quEstions 27—30{{/B}}

A、A、FriEnD oF thE mAn’s.
B、An Air ConDitioning ExpErt.
C、A、sCiEntist who sEt out thE prinCiplEs For intErnAl ComBustion.
D、A、proFEssor who invEntED AutomoBilEs AnD AirplAnE.