—Mr . Smith was really helpful when you were in financial difficulty during those years.

         —Definitely . I can never appreciate his kindness      .

         A. well      B. seriously     C. properly       D. enough

— Mr. Smith was really helpful when you were in financial difficulty during those years.

— Definitely. I can never appreciate his kindness ________.

A. seriously                  B. well                       C. enough                   D. properly

—Mr . Smith was really helpful when you were in financial difficulty during those years.

         —Definitely . I can never appreciate his kindness      .

         A. seriously     B. well     C. enough        D. properly

—Mr . Smith was really helpful when you were in financial difficulty during those years.

       —Definitely . I can never appreciate his kindness____________

       A. well    B. seriously    C. properly     D. enough

 — Mr. Smith was really helpful when you were in financial difficulty during those years.

— Definitely. I can never appreciate his kindness ________.

A.seriously                          B. well                                    C. enough                   D. Properly