I can't play the piano, but my sister can.这个句子对吗?

I can't play the piano, but my sister can.这个句子对吗?
I can't play the piano, but my sister can.这个句子对吗?

I can't play the piano, but my sister can.这个句子对吗?
对.
后半句是一个省略 but my sister can play the piano