My mother got a new job, which makes me feel proud of her.

Noun: names or ideas. -------------- Adjective: Describes a noun (characteristics). ----------- Adverb: Talks about how an action was performed.

Such a: Singular - countable noun ----------------------- Such: Plural countable or uncountable nouns.

My science teacher at school was such a great person.

When we want to emphasize on the efforts we are making, we mean they are/are not enough.

No matter + WH + Complement + (,) + Result.

So + adj or adv ----------------- Such + adj + noun.

No matter how difficult my job is, I continue doing my best to get a promotion.

The job interview I had yesterday was so challenging. I hope my answers were good enough.

The purpose is to replace an idea that was already mentioned in order to avoid repetition.

The house where I lived when I was a child was already sold.