situation: Tom dropped jim' :'s mobile phone .
tom: i dropped your mobile phone .jim: let me have a look. don't think it 's broken.
t
Tom:_ jim: it' s all right.
a. l think it ' s too old .
b. l'm sorry about that.
b.i'm sorry about that .
c.i dropped it on the carpet.
d.can you buy a new one?