1.May I ask you for a dance?
2.May I have the pleasure to have this dance with you?
3.They're well matched.
4.Do you like dancing?
5.How many kinds of dance have you learnt?
6.The music is going on again. Will you accept my arm?
7.Will you dance the next twist with me?
8.Are you engaged for the next tango?
9.Sorry, I am engaged for the social dance.
10.Why don't we have one more dance?