please tell me about что

[akiohiko]

This is the book that I read yestarday.

The relative pronoun,that, can be replaced by что in the corresponding russian scentence?

[Action]

Зачем мудрить?

Это книга, которую я прочел вчера

все

удачи

[akihiko]

This is the book that I read yesterday.

Is что a relative pronoun?

[Alex Nord]

no

[akihiko]

This is the book that I read yesterday.

что can not be used instead of that in the translation?

[Alex Nord]

right
you should use "которая"

[akihiko]

I often see russian sentence where что is used as if it is a relative pronoun.

то or tot is omitted in the preceeding sentence?

[Alex Nord]

let me put in a defferent way.
что - is a relative pronoun.
but in your case it is not the pronoun you need.

[Алвико]

если поставить вместо которая что, то это совсем не по-русски как-то будет звучать, больше по-украински:
ось книга, що я прочитала вчора

[akihiko]

Thanks

I think that Russian transforms gradualy to English , from east to west europe. Right?