文中共有10处错误，其中一个句子中只有一处错误，每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（/）划掉。
修改：在错的词下面划一横线（一），并在该词下面写出修改后的词。
   One day Tony was cross the road when he was hit by a car.He fell and break his arm.
   An ambulance soon arrived in and took Tony to a hospital.There a doctor operated on his arm.Then he put the arm in a cast（石膏）.Tony could not move it at all.
   "You must keep your arm in the cast in six weeks，"the doctor said. "That will give the broken bone a chance to heal（复原）."
   On the end of six weeks Tony went back to the hospital.The doctor used a large saw（锯）cut the cast.Then he took Tony's arm out of the cast.
   "Can you move your arm，Tony？" he asked.
   Tony tried.At the first it was difficult，but soon he could move it easily.
   "Yes，it's fine，" he said. "Thank you very much."
   "In a few days it will be as good before，"the doctor said."Just exercise it a little."
   "Will I be able to play guitar？" Tony asked.
   The doctor smiled，"Of course you will，" he said."You'll have no problems."
   "That is a good news，"Tony said，"because I couldn't play it at all before."