题目内容：

单词拼写。(每空1分，共10分)

1.All the men turned and _________(鞠躬)when Emperor passed.

2.She has such good ________(礼貌).

3.I opened a saving _________(账户)in the Central Bank of China.

4.After the tiring trip, his ________(力气)gave out.

5.Children are ________(好奇)about everything, so teachers and parents should satisfy their __________(好奇).

6.More than one thousand people were __________(淹没)in the sea after Titanic sank..

7.The ________(起源)of this custom is unknown.

8.You have to eat food with plenty of _____(纤维) that helps you _____(消化) better.