---Could you please tell me ___________?   ---Of course. For over ten months.

How long has he  _______ the phone? –For half an hpur..

   A. on                B. made             C. been on              D.been in

—That actor often joins in dfferent activities in Beijing. Do you know        ?

—For 5 years.

A. how soon he will come back       

B.how long he has stayed there

C. how long has he stayed there       

C. how often does he go there

---Could you please tell me ___________?   ---Of course. For over ten months.

A．how long has he left school                B．how long he has left school

C．when he left school                      D．how long he has been away from school