英语时态填空 in the last few months,the doctor -----(cure)over 200 children with eye problems.

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英语时态填空 in the last few months,the doctor -----(cure)over 200 children with eye problems.

英语时态填空 in the last few months,the doctor -----(cure)over 200 children with eye problems.
英语时态填空
in the last few months,the doctor -----(cure)over 200 children with eye problems.

英语时态填空 in the last few months,the doctor -----(cure)over 200 children with eye problems.
have cured

had cured

cured

had cured

had cured 过去完成时

had cured