Commas and Subordinating Conjunctions Which sentences require commas?

DIRECTIONS: Identify the SUBORDINATING CONJUNCTION in each sentence and add
commas if they are necessary.

1. While he was taking a shower Jimi Hendrix had a brilliant idea.

2. After she tried on twelve shirts Ginny Weasley decided to buy only two.

3. Marvin Gaye mows lawns if his neighbors agree to pay him cookies

4. Moaning Myrtle looked through her Instagram feed while she was sitting in the dentist's waiting room

5. Since we don't have enough people to play charades Jar Jar Binks suggested we watch a movie instead

6. Dr. Phil loves Halloween because he enjoys scaring people.

7. If Lucius Malfoy doesn't get here soon we will have to leave for the zoo without him

8. Harper Lee should buy a winter coat since it is starting to get cold.

9. I didn’t invite Matthew Perry to my birthday party because he will be out of town next weekend.

10. Freddie Mercury and I are going to play video games after we finish our homework.

1. While he was taking a shower, Jimi Hendrix had a brilliant idea.

2. After she tried on twelve shirts, Ginny Weasley decided to buy only two.

5. Since we don't have enough people to play charades, Jar Jar Binks suggested we watch a movie instead.

7. If Lucius Malfoy doesn't get here soon, we will have to leave for the zoo without him.

Explanation:

Subordinating conjunctions are used to link a dependent clause to an independent one. Dependent clauses don't convey full meaning and they can't stand on its own in a sentence so they need to be connected with independent clause. General rule is that if a dependent clause precedes an independent in a sentence, it needs to be separated from it with a coma.

That means that sentences 1), 2), 5) and 7) require commas.

the purpose of the heading in the passage is to identify who is telling the story.

this excerpt is part of the book sugar changed the world (2010) written by marc aronson and marina budhos. as the book has been written by two people, the heading "marc" indicates that this specific excerpt is being narrated by aronson. in the fragment, marc describes his grandfather's story after hearing it from his cousin. however, there are other excerpts where budhos is the one that tells the story of her family.

aronson and budhos, who are husband and wife in real life, decided to write sugar changed the world when they found out how sugar, which had an important role in slavery and economy, changed their ancestors' lives.