单词拼写。

     根据下列各句句意和空白之后的汉语提示词，在横线上写出对应单词的正确形式，每空只写一词。

1. As is known to us, Bank of China has many ______(分支机构)all over the country.

2. Newspapers can keep us well ______(知晓的,了解的)about what is happening all over the world.

3. It is very difficult to ________(联系)the result with the unknown cause.

4. They are________(讨论) about the problem with education.

5. Her work has ________(有助于)greatly to our understanding of this difficult subject.

6. The ______(屋顶)of the buildings were broken in the hurricane. 

7.  We must arrange a ______(方便的) time and place for the meeting.

8. She was strongly ________(推荐)for the post.

9. She doesn't have enough _____(力气)to carry it upstairs.

10. I only caught a ______(一瞥)of the parcel, so I can't guess what was inside it.