作业帮_the past there years,our teacher__thirty studens return to schoolA on made B in has made C on has made Din made
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_the past there years,our teacher__thirty studens return to schoolA on made B in has made C on has made Din made
_the past there years,our teacher__thirty studens return to school
A on made B in has made C on has made Din made
_the past there years,our teacher__thirty studens return to schoolA on made B in has made C on has made Din made
B:(In) the past three years,our teacher (has made) thirty students return to school.
b
B: 应该是：(In) the past three years, our teacher (has made) thirty students return to school.