What caused the accident and who was responsible for it ? a

what caused the accident and who was responsible for it ( ) What caused the accident and who was responsible for it ? a What caused the accident and who was responsible for it_____ .What caused the accident and who was responsible for it____ it you or I who _ to be responsible for the accident? A.Is;a —What caused the accident —It was my fau it is___that am responsible for the accident ----Who should be responsible for the accident -----The boss _it you or I who _ to be responsible for the accident? A.Is; 1 -Who should be responsible for the accident? It was the engine f that caused the accident What caused the accident?主语?