Mary had to work at evenings and weekends. Only in this way ________ able to complete the report by the deadline.

  A. was she                     B. she is                        C. had she been           D. she has been

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 Mary had to work at evenings and weekends. Only in this way _____ complete the reports by the deadline.

A. was she able to                                            B. she was able to

C. she has been able to                                D. has she been able to

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Mary had to work at evenings and weekends. Only in this way _____ complete the reports by the deadline.