短文改错 71.... thirteen year old. year- years 72.... she was child. child前加a 73. .. she goes to..goes→went 74. After finish her finish→ finishing 75.... of another students. another>other 76....is extreme difficult... extremeextremely 77....hers family in...hers>her 78. .. gift in kung...in→for 79.... of difference moves... differencedifferent 80.... she hopes of ..去掉of