i am doing homework.
are you doing your homework/
i am not doing my homework
i am having a shower
are you having a shower
i am not having a shower
you are smoking
are you smoking
you aren't smoking
you are drinking
再问： 在帮忙找十个 谢谢
再答： you are playing games are you playing games you aren't playing games he is singing is he singing he isn't singing she is dancing is she dancing she isn't dancing you aren't drinking
