Mastering Comma Usage in English Grammar

What is the primary purpose of using commas in sentences?

• To connect sentences without conjunctions

• To indicate the start of a new sentence

• To separate items in a list or clarify sentence structure

• To replace periods in long sentences

How many coordinating conjunctions are there in English?

• Five

• Three

• Seven

• Ten

What is a compound sentence?

• A sentence with no coordinating conjunctions

• A sentence that includes a list

• A sentence made of two or more independent clauses

• A sentence with a single idea

In which case is a comma used before a coordinating conjunction?

• After a prepositional phrase

• Before introducing a list

• In simple sentences

• In compound sentences

What is an introductory expression?

• A phrase that concludes a sentence

• A word or phrase at the beginning of a sentence that provides context

• A complex sentence structure

• A type of coordinating conjunction

When is it appropriate to use a comma after an introductory expression?

• Never

• Always

• Depending on the context and style guide

• Only in informal writing

What type of information do non-essential adjective clauses provide?

• Historical context only

• Critical information necessary for understanding the sentence

• Additional, non-critical information about a noun

• A list of essential items

Which relative pronouns often begin non-essential adjective clauses?

• "Who" and "Which"

• "That" and "Whom"

• "Whose" and "Where"

• "Which" and "Whom"

Can removing a non-essential adjective clause change the correctness of a sentence?

• Yes, but only in formal writing

• No, the sentence remains correct

• No, it always changes the sentence's meaning

• Yes, it makes the sentence incorrect

What should you consider when deciding to use a comma?

• The number of words in the sentence

• If the sentence contains two separate complete ideas

• Whether the sentence is formal or informal

• The length of the sentence only