how is your summer vacation ____.—It's great A、doing B、going C、coming D、having

how is your summer vacation ____.—It's great A、doing B、going C、coming D、having
how is your summer vacation ____.—It's great
A、doing B、going C、coming D、having
还有一道
Some old people are dancing ____ the music.
A 、for B、with C、to D、from