I need to buy eggs, milk, butter, and flour.

start or position further from the margin than the main part of the text.

They've

Secondly, people used different methods to get results for their experiments.

Format technique, provides continuity, and visually separate paragraphs.

true

Before the quotation

First line indent
Hanging indent
Right indent
Left indent

Had

Answers may vary but here are some correct ones

When two sentences are joined by a coordinating conjunction, use a comma before the conjunction.

lf a phrase or group of words comes before the main sentence, place a comma after those words.

Use commas around clauses. phrases, and words that are not essential to the meaning of the sentence. Place a comma before the beginning of the phrase and one at the end.

Do not use commas to set off phrases and words that are essential to the sentence.
For dialogue: use a comma after a phrase introducing a quotation. Use a comma after a quotation that is followed by a dialogue tag.

Use commas to separate three or more words, phrases, or clauses written in a series.

Indentations give the reader a break to reflect and rest.
Indentations give time for the reader to organize their thoughts.
Indentations also hint that a change is coming.

What is grammar, grammar is the study of the classes of words, their inflections, and their functions and relations in the sentence

Commas are important because they act as a tool that separates words, phrases, and ideas so that readers do not misunderstand the author's intended meaning.

No it's over Intendent

Prescriptive grammar
Descriptive grammar