Adoctorenteredthehospitalinahurry．Hechangedhisclothesandwentdirectlytothesurgeryroom（外科手术室）．Hefoundtheboy'sfatherwalkinginthehallwaitingforthedoctor．Onseeinghim，thedadshouted，"Whydidyou

　　A doctor entered the hospital in a hurry．He changed his clothes and went directly to the surgery room （外科手术室）．

　　He found the boy's father walking in the hall waiting for the doctor．On seeing him，the dad shouted，"Why did you take all this time to come？Don't you know that my son's life is in danger？"

　　The doctor smiled and said："I am sorry，I wasn't in the hospital and I came as fast as I could after receiving the call．And now，I wish you'd calm down．"

　　"Calm down？!What if your son was in this room right now，would you calm down？"said the father angrily．

　　The doctor smiled again and replied，"We will do our best to save your son．"

　　After some hours the doctor went out happily．"Thank goodness!Your son is saved!"And without waiting for the father's reply he went on his way running．"If you have any questions，please ask the nurse!"

　　"Why is he impolite？Why didn't he wait some minutes so that I could ask about my son's illness．"said the father when seeing the nurse minutes after the doctor left．

　　The nurse answered，"His son died yesterday in a road accident．He was at the burial when we called him for your son's surgery．And he left running to finish his son's burial．"

　　71．Who was impolite in fact？___

　　A．The doctor．

　　B．The boy's father

　　C．The nurse．

　　D．The doctor's son．

　　72．By saying"I wish you'dcalmdown"，the doctor expected the father to___．

　　A．be relaxed

　　B．go out

　　C．be worried

　　D．sit down

　　73．What happened to the doctor's son？___

　　A．He was in need of a doctor．

　　B．He was saved by his father．

　　C．He was dead in a road accident．

　　D．He was lying in the hospital．

　　74．Where was the doctor when the hospital called him？___

　　A．He was at home．

　　B．He was in his office．

　　C．He was at his son'