I with my sister ____(play)badminton in the yard now.空上填什么?

I with my sister ____(play)badminton in the yard now.空上填什么?
I with my sister ____(play)badminton in the yard now.空上填什么?

I with my sister ____(play)badminton in the yard now.空上填什么?
am playing

am playing

想表达：我和我妹正在院子里打羽毛球。可以这么说：My sister and I are playing badminton in the yard now 。

is playing
用第三人称的进行时态
（如果高考，我会这样作答，我刚高考完，答案不一定正确。）