A：hello!Lily,,do you have time tonight?there is a concert,will you go with me?B:wow,really great!but who will come to the concert?A:i am not sure ,but i heared that JustinBiber will come,he is your favorit star,isn't he?B:Oh,really?he is so handsome,i like him so much..but Mark,who is your favorite star?will she or he will come?A:My favorite star is AVRIL,and she will come ,too.i am so excited!B:e..actually i do not like her so much,haha..why do you like her?
A：Uhm,you know,her sound is so nice,and then she always sings with her heart,on the other hand ,she is very bright girl..with all these reasons,i like her.and what about you why do you like JustinBiber?
B:Aha..he is so cool.and it is amazing that he can get such a great achivement only in his 17,so i like him,so much..
A:wow..it is 19:00now,the concert will begin at 19:30,we have to hurry.
B:ok!let's go..
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