task 15 arrange the utterances to make a good dialogs plis bantu jawab

dialog 1
B: have u seen this article about the new cloning research?
A: yes. i read this morning
B: i cant believe it. they're going to clone human hearts
A: it seems like a good idea to me
B: a good idea? you'r not serious. are u?
A: no. really think of medical users
B: i dont think so