问题描述：
修改病句：找出下列句子的错误
1、We don't know that we can do about it.
2、The old man said he had joined the army in 1965.
3、could you tell me how I could get to the nearest post office .
4、Mary said she did not heard from her old classmates since September .
5、Charls asked he could use my car .
6、Mom asked me where I will go the next day .
7、Don't look at someone else poper ,John ,You should do it by yourself .
8、The teacher gave a series of example in her lecture in order that everybody could understand.
1、We don't know that we can do about it.
2、The old man said he had joined the army in 1965.
3、could you tell me how I could get to the nearest post office .
4、Mary said she did not heard from her old classmates since September .
5、Charls asked he could use my car .
6、Mom asked me where I will go the next day .
7、Don't look at someone else poper ,John ,You should do it by yourself .
8、The teacher gave a series of example in her lecture in order that everybody could understand.
问题解答：
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