Identify the essential/non-essential clause
Place the comma in the correct place
Long passages
100

He hopes to return to the city where he met a woman with shiny blue hair.

Essential 

100

The novel written by the famous author J.K. Rowling has become a classic in contemporary literature.

The novel, written by the famous author J.K. Rowling, has become a classic in contemporary literature.

100

Bob's pet rock collection, proudly displayed on the windowsill, is the talk of the town. Each rock, which Bob affectionately named after famous movie stars, has its own rock-star personality. The rocks, who have an exclusive fan club on social media, even starred in a rockumentary. Bob, who claims to speak “rockish”, spends his weekends hosting rock parties for his pet pebbles. The parties, which include a red carpet made of moss, are legendary in the neighborhood and attract rock enthusiasts from far and wide.

Non essential 

200

The scientist whom everyone respects for his groundbreaking research was awarded the prestigious Nobel Prize.

Non-essential 

200

The novel that won the prestigious literary award explores complex themes of identity and belonging.

It's essential! No commas needed

200

Bob's pet rock collection, displayed proudly on the windowsill, captivates the town. Each rock, which holds a unique geological significance, sparks curiosity. The rocks, which Bob studies diligently, contribute to local educational programs. Bob, who is a geology enthusiast, shares his passion through engaging workshops. The workshops, which feature hands-on rock activities, inspire learning in the community.

Essential 

300

Those in attendance, whether young or old, expect the full holiday spectacle, which includes the Mouse King, young Clara, and the Sugar Plum Fairy.

Non-essential

300

The experiment conducted by a team of dedicated scientists from various fields yielded groundbreaking results in the field of quantum mechanics.

The experiment, conducted by a team of dedicated scientists from various fields, yielded groundbreaking results in the field of quantum mechanics.

300

In Snackville, the annual bake-off is a delight. The competition, which attracts bakers from all around, brings joy to the neighborhood. Bakers, who display impressive culinary skills, vie for the coveted trophy. This year, Carol, who won last year's competition, presents a secret recipe. The recipe, which combines unexpected ingredients, promises a delicious surprise for all.

Esssential 

400

John, the highly skilled engineer who has been working tirelessly on the innovative project aimed at revolutionizing sustainable energy solutions for the past two years, is scheduled to present his findings at the upcoming international conference.

Non essential 

400

In the bustling city where skyscrapers adorned the skyline my friend who is an architect pointed out the latest architectural marvel.

In the bustling city, where skyscrapers adorned the skyline, my friend, who is an architect, pointed out the latest architectural marvel.

400

In the bustling aisles of Costco, where bulk-buying reigns supreme, shoppers, who navigate the colossal warehouse, embark on treasure hunts for deals, which often lead to impulsive purchases. The samples, which are strategically placed throughout the store, tempt even the most disciplined customers, who find themselves indulging in unexpected culinary delights, which contribute to the unique shopping experience at Costco.

Non essential

500

Because a choreographer should understand the business aspects of the professional theater industry such as budgeting and marketing an aspiring one should consider taking some business courses.

Non-essential

500

In the bustling city where skyscrapers touched the sky a group of friends gathered for a picnic their laughter echoing through the park. The oldest member of the group a wise and experienced storyteller entertained everyone with captivating tales from ancient civilizations.

In the bustling city, where skyscrapers touched the sky, a group of friends gathered for a picnic, their laughter echoing through the park. The oldest member of the group, a wise and experienced storyteller, entertained everyone with captivating tales from ancient civilizations.

500

In the colorful world of M&M's, where chocolate delights come in various hues, enthusiasts, who savor each bite with gusto, explore the vibrant spectrum of flavors, which range from classic to exotic. The packaging, which features playful characters and whimsical designs, adds an element of fun to the experience, enticing collectors, who cherish each unique bag, which contributes to the joyous and delectable world of M&M's.

Non essential

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