问题描述：
改同意句5句
1.I was very nervous when I talked to the head teacher.
2.The volunteer helped the athlete off the playground.
3.Debbie is always ready to rais her hand to answer the teacher's question.
4.I failed the exam becaus I was unprepared.
5.Although my grandpa is over 90,he can do many things by himself.
1.I was very nervous when I talked to the head teacher.
2.The volunteer helped the athlete off the playground.
3.Debbie is always ready to rais her hand to answer the teacher's question.
4.I failed the exam becaus I was unprepared.
5.Although my grandpa is over 90,he can do many things by himself.
问题解答：
我来补答展开全文阅读