-Miss Jones once _________ music at Bardon School for ten years and now is an actress.
-No wonder I often hear her sing in the garden. y

1. A.
   had taught
2. B.
   taught
3. C.
   is teaching
4. D.
   has been teaching

— Miss Jones once _____ music at Bardon School for ten years and now is an actress.                                

   .— No wonder I often hear her sing in the garden.                            

A. had taught                    B. is teaching

C. taught                       D. has been teaching

--Miss Jones once _____ music at Bardon School for ten years and now is an actress.

--No Wonder I often hear her sing in the garden.

   A. had taught                         B. taught         

   C. is teaching                         D. has been teaching

－Miss Jones once _________ music at Bardon School for ten years and now is an actress.

－No wonder I often hear her sing in the garden. y

       A．had taught       B．taught       C．is teaching       D．has been teaching