题目内容：

完成句子（每小题2分，共10分）

根据所给汉语意思，用单词或短语完成下列英语句子。

1.小孩子不允许和大人顶嘴。

Little children should not ______________________talk back to their parents.

2.据说数字十三在西方国家是不吉利数字。

_________________thirteen is an unlucky number in many Western countries.

3.两个说法都正确，但是第一个听起来没那么礼貌。

Both are correct, but the first one sounds ________          .

4.茶是在大约七世纪被引进韩国和日本。

Tea was brought to Korea and Japan about _______ century.

5.我很害羞不敢在公共场合说话。

I am too shy to speak ______________.