The word "beautiful" describes the appearance of the noun "doll."
It functioning as an adjective in the sentence.
Hard is a positive degree of Adjective.
Harder is the comparative degree of Hard.
Hardest is the superlative degree of Hard.
Generally preposition "of" is used after "proud".
Proud itself is an adjective.
"That" is used to point out a specific noun (blue car), making it a demonstrative adjective.
Indefinite adjectives (e.g., some, many) do not specify a particular noun.
"Wise people do not spend their money foolishly."
"Wise" is an adjective describing people.
We use adjectives before nouns (e.g., wise people).
"Wisely" is an adverb, and "wisdom" is a noun — both do not fit here.
Quick is the positive degree of Adjective.
Quicker is the comparative degree of Adjective.
We use comparative degree of two compensations (call & write.
It is quicker to call than to write means لکھنے سے زیادہ کال کرنا تیز ہے
"Several" refers to an indefinite number, indicating how many mistakes — qualifying it as an Adjective of Number.
It also shows quantity (not exact), so it works as a Quantity Adjective too.
Tallest is the superlative degree of tall.
"tallest" is used when comparing the heights of two or more people or objects.
Additional information:
If we were talking about just one person's height, we would use the word "tall" instead of "tallest."
Generally aware is followed by of.
Aware of something means باخبر رہنا، آگاہ رہنا
He is aware of and engaged in his work.
"Ill taught" is an adjective phrase.
It describes someone who has received poor or incorrect instruction.