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.