用BE动词造疑问句

请问用什么时态呢？一般现在时、现在进行时、一般过去时
Is she from China？
Are you going to take part in the football game？
Were you born in Beijing？

Am I your teacher? 我是你的老师吗？
Is he a student? 他是一位学生吗？
Are you full? 你吃饱了吗/
Was he coming? 他（那时）来了吗？
Were you working here? 你们在这工作吗？