Mark the letter A, B, C, or D on your answer sheet to indicate the cor

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.    

When I ____ here for fifteen years I'll be entitled to a pension.

• A. A. am working
• B. B. work
• C. C. had worked
• D. D. have worked

hành động làm việc xảy ra trước nhận trợ cấp,
=> chia ở hiện tại
=> B