No change! this sentence is correct!
A screw holds things together, so B
The two uses of quotation marks are that it is to distinguish and convey verbatim text that has been written or uttered by someone else and in fiction and occasionally in poetry, speaking acts are denoted with a quotation mark.
The two uses of hyphen are that when a word needs to be split up because there isn't enough room for it to fit on one line, hyphen is used and to avoid unpleasant vowel doubling, use a hyphen.
The two uses of dash are that it is used to introduce a point for emphasis and to mark the beginning or end of a sentence.
The two uses of comma are that when independent clauses are united by one of the following seven coordinating conjunctions: and, but, for, or, not, so, yet, commas are used to separate them and after the first introduction clause, phrase, or word that precedes the main clause, a comma should be used.
The two uses of an exclamation mark are that it is used to convey a particularly strong feeling at the end of a sentence or a brief phrase and is employed to bring an exclamation or rhetorical question to a close.
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Answer:
1. to inform 2. to entertain 3. to persuade 4.to inform
Explanation:
