I haven't danced for a long time.
Neither have I.
We must go to a dance soon, or we'll forget how to dance.
Yes, we must. What have you been doing since I last saw you?
I've been studying hard for my examinations. And you?
I've been learning Japanese every evening.
Why have you been learning Japanese? Why not English?
I hope to visit Japan next year.
Well, we'll both have to start learning all the new dances.
Yes, let's go into the dance-hall and ask if we can take dancing-lessons.