He is watching TV in the room.
They were dancing at nine o'clock last night.
There is a boy swimming in the river.
We have fun learning English this term.
They had problems getting to the top of the mountain.
Thanks for helping me.
Are you good at playing basketball?
enjoy doing sth 乐于做某事
finish doing sth 完成做某事
feel like doing sth 想要做某事
stop doing sth 停止做某事