"签名"用英语怎么说?

"签名"用英语怎么说?

1. to sign (one's name with a pen, etc.)
2. to autograph
3. 名词：signature
例句：
1. 这张纸要求图章而不是签名。
The paper requests signet, not signatures.2. 这份文件上有他的签名。
This document bore his signature.3. 请愿书上有很多签名者的名字。
Many subscribers' names are in the petiti工n.4. 你如果不会签名，画一个十字也可以。
If you can't sign your name, make a cross instead.5. 他们在请愿书上签名，支持工人的请求。
They signed a petition in support of the workers' demands.6. 经过进一步的调查发现签名不是真迹.
On (ie As a result of) further examination it was found that the signature was not genuine.7. 这歪歪扭扭的玩意儿就算是签名吗?
Is this squiggle supposed to be a signature?8. 谁也没记著应当签名.
Nobody remembered to sign their names.