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

问题补充：

.

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

答案：

(答案→)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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