阅读下面材料, 在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。
David was eating something at home _____ he received a strange phone call from a hospital.The caller said that his son had fallen to ground unconscious on the way to school.It was he _
took him to the hospital.David hung up his cell phone and rushed to his son’s classroom, only ___
_(find) him listening to the teacher attentively.He suddenly realized that he had been cheated.Just at that time the phone ___
__ (ring) again, saying, “ Your son is _
_ (terrible) injured and he needs ____
___ immediate operation which costs 48000 yuan.The doctors here say they will not operate___
__your son until they receive the money.” When _
_( ask) from where the caller had taken his son to hospital, the caller rang off.
If the cheater thought he could get money from David in such a _____(honest) way, he was wrong.Such phone calls are common these days.Some parents might have fallen victims to such tricks.Most of the parents are sensitive to __
____.It was really silly to cheat well-educated men like David.