My class teacher_______you this afternoon ,but no one answer

My class teacher_______you this afternoon ,but no one answer —I called you at 4:00 yesterday afternoon, but no one answer —I called you at 5:00 yesterday afternoon, but no one answer 改错：1.No one in our class could answer this problem .2.He doe 不变句意(英语)No one can answer this question.No one ()()() answer we __have no class this afternoon.填will可以吗? _____a class meeting this afternoon. There_____a class meeting this afternoon. There_____a class metting this afternoon. This is ( ) My answer The phone is ringing,but no one answer the phone.语法有无错啊? I phoned you at six last night,but ______(none/no one)answer