请用“定语从句”翻译以下6个句子。谢谢合作。

1、飞机是一种能飞的机器。
The airplane is a kind of manchine that can fly.

2、我昨天煮的面条，很香。

The noodle, which I cooked yesterday, is really delicious.

3、昨天买的那本书我还没看完呢。

I haven't finished the book, which I bought yesterday.
(这里的finish reading的reading可以省略。）

4、中国是一个人口众多的国家。

China is a country, which has a large population.

5、这不是我要找的笔。

It is not the pen, which I am looking for.

6、我要向帮助过我的老师表示感谢（致谢）。

I should thank the teacher, who helped my before.

1, the aircraft can fly is a kind of machine.
2, yesterday I cooked noodles, very fragrant.
3, yesterday to buy the book that I have not read it.
4, China is a populous country.
5, it is not I want to find a pen.
6, I would like to help the teacher thanked me (thanks).

plane is a kind of flying machine
I cooked noodles yesterday，and it is so fragrant
I have not read the book which I