Shop assistant：What can I do ___1___ you?

Boy：I want ___2___ ___3___ a new T-shirt．

Shop assistant：What ___4___ do you like?

Boy：Black and white．

Shop assistant：How ___5___ this one?

Boy：I think it is nice．___6___ ___7___ is it?

Shop assistant：Twenty dollars．

Boy：Oh，It's too expensive（贵的），I'd like a cheaper（便宜的）___8___．

Shop assistant：OK，This one is cheap．Please have a ___9___ ___10___ it．

Boy：That's OK．I'll take it．