They _______ and _______ a lot of money before they _______ last year. A. are working / saving / will retire B. have worked / have saved / would retire C. were working / saved / have retire
They _______ and _______ a lot of money before they _______ last year.
A. are working / saving / will retire
B. have worked / have saved / would retire
C. were working / saved / have retired
D. had worked / saved / retired