similarity

我能看出你和你母亲之间的相似之处。

I can see the ___similarity between you and your mother.

两者之间的另一个相似之处是他们的外表。

Another ___similarity between the two was their appearance.

他们在兴趣爱好的相似性令人惊讶。

The ___similarity in their hobbies was surprising.