options: f : go and prepare for tomorrow 's class , my son . f : maybe i 'll call again later . f : now the class is over . you may go home now . f : please make sure tom knows that mr. smith 's lecture will be tomorrow . this is why i call .
article: f : hello , could i speak to tom , please ? m : i 'm sorry , but tom is playing football at school now . may i know who is speaking ? f : this is jane . could you please tell tom that mister smith 's lecture has been put off to the day after tomorrow ? m : sure .