Could I speak to Mary , please ?   This is Mary speaking . Who is that ?   This is Bob . Where have you been , Mary ? I have been trying to get on to you for the last half hour . Don ’ t you leave your home at 7   Yes , I do , but today I went shopping and have only just come back . It is very nice to hear your voice , Bob . I didn ’ t know you were in New York .   I arrived this morning . I would have rung you before but I have been terribly busy all day attending a conference . It has only just ended . Are you doing anything tonight , Mary ?   Yes , I am going to meet a client .   But that is terrible ! I am only here for one night ! 