下列每个句子中均有一处错误，请找出并改正。

1. We don’t know that we can do about it.

2.Could you tell me how I could get to the nearest post office?

3.The old man said he had joined the army in 1965.

4.Mary said she did not heard from her old classmate since September.

5. Charles asked he could use my car.

6.Mother asked me where I will go the next day.

7.Do you have a friend whom you could tell everything, like your deepest feelings and thoughts.

8.Don’t look at someone else paper, John. You should do it by yourself.

9. In order to improve your English, you can try writing an English diary every day.

10. The teacher gave a series of example in her lecture in order that everybody could understand.

----Go for a picnic this weekend, OK?

---- ______. I love getting close to nature.

Your door needs ___________ . Would you like me to do it for you?

_____ in the queue for an hour,Tom suddenly realized that he had left his wallet at home.

 My friend Martine was very sick with a strange fever; ______, he could neither eat nor sleep.

 _________ with such a failure, Arnold has no courage to live on the earth.

He helps his neighbors, and _______ he gets much help from people around.

 Being abroad, ___________ the new condition, the easier your new life will be.

Her parents insisted that she ________ a clever student and ________ a better education.

The local government supplied the poor children _______free text-books and some companies supplied food __________ them.