Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
She started working as a teacher of English ten years ago.
A.She had worked with a teacher of English for ten years.
B.She has been working as a teacher of English for ten years.
C.She had been working as a teacher of English for ten years.
D.She has worked with a teacher of English for ten years.