You capitalize the first A but not the last a.
No, you do not capitalize "first birthday" in a sentence.
Capitalize the first word in a sentence. Capitalize proper nouns, such as the names of people and places. Capitalize the pronoun "I." Capitalize the first word of a quote. Capitalize days of the week, months, and holidays. Capitalize the titles of books, movies, and songs. Capitalize the first, last, and important words in titles.
Yes, in this context "building" should be capitalized as part of the name "Legal Aid Building".
Capitalize the first letter of "Yours." Do not capitalize the "truly."
you capitalize the first word and all the important words
No, the term "instructional aid" is not typically capitalized unless it is part of a title or if it precedes the individual's name.
You capitalize the first letter of the name of each book. If you write "First Samuel," for example, instead of "1 Samuel" or I Samuel, then you also capitalize the F of "First."
You do not capitalize chickenpox in a sentence. The exception is if the word is the first in the sentence.
Unless "it's" is the first word, there is no need to capitalize.
No, you never need to capitalize alligator unless it is the first word of the sentence.
In a list, you would typically capitalize the first word of each item, proper nouns, and the first word after a colon if it introduces a complete sentence.