b) An ambulence came to take him to the hospital. b) ambulence ⇒ ambulance
c) He was taken to the emmergency unit. c) emmergency ⇒ emergency
d) There, doctors and nerses took care of him. d) nerses ⇒ nurses
e) After two hours the boy revived and he feeled pain in his head. e) feeled ⇒ felt