- 问题详情:Mr.Black,We'reverygladlytohavereceivedyourmoneyandsomereadingmaterials.Thankyouverymuch.Wehadbeenstudyinghardsincewecamebacktoschool.Underthehelpofourteachersandclassmates,wehavemadegreatprogressesinourstudies.Soweoftenpraisedandencouragedby...
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