options: f : i 'm sorry to hear that you left your mobile phone at home . f : i 'm sorry to hear that you left your mobile phone at school . f : i 'm sorry to hear that you left your purse at home . f : i 'm sorry to hear that you left your bag at home .
article: f : the meeting has been called off , frank . m : but why did n't anyone tell me ? f : we called you , but you did n't answer . m : oh , i left my mobile phone at home .