He is playing basketball. 他正在打篮球。
The bird is flying. 那只小鸟在飞。
The pigeon is flyng. 那只格子在飞。
The dog is barking. 那只狗在叫。
A little girl is crying. 一个小女孩正在哭。
I am answering your question. 我正在回答你的问题。
She is doing her homework. 她正在做家庭作业。
He is talking with his teacher. 他正在和他的老师谈话。
I am watching TV. 我在看电视。
Li Lei is running. 李雷正在跑步。
They are watching TV.
We are singing songs.
The cats are running.
The girls are jumping.