Cars and factories ___ greenhouses gases, which contribute to global warming.
generate
Medical students study ___ topics before choosing a specific area to specialize in.
general
What is the appositive in this sentence?
Maria ate lunch at Chili's, her favorite restaurant.
her favorite restaurant
Put a comma, as needed, into the sentence.
We brought sandwiches fruit and cookies to the park for a picnic.
We brought sandwiches, fruit, and cookies to the park for a picnic.
Rewrite the sentence to add the adjective clause in parentheses. Add commas if needed.
Prof. Sheen drives to work every day. (who lives in Virginia)
Prof. Sheen, who lives in Virginia, drives to work every day.
Warming temperatures are causing Arctic sea ice to ___ rapidly. It is getting smaller and smaller.
shrink
The Method of Medicine by Al-Zahrawi was used as a ___for surgery in medical schools for centuries.
manual
I met with Prof. Smith, my chemistry instructor, during her office hour.
my chemistry instructor
The cat ran up the stairs into the kitchen and out the back door.
The cat ran up the stairs, into the kitchen, and out the back door.
Rewrite the sentence to add the adjective clause in parentheses. Add commas if needed.
The professor who lives in Washington, DC takes the metro to work every day.
The professor who lives in Washington, DC takes the metro to work every day.
NO COMMA (restrictive)
Scientists are identifying ___ ways that individuals and countries can help solve the problem of climate change.
practical
When people have COVID-19, they should at home so that they didn't ____ the disease to other people.
spread
John F. Kennedy, the popular US president, was known for his eloquent and inspirational speeches.
the popular US president
My mother who was born in Massachusetts has a New England accent.
My mother, who was born in Massachusetts, has a New England accent.
Rewrite the sentence to add the adjective clause in parentheses. Add commas if needed.
The Washington Monument which stands in the middle of the National Mall is 169 meters tall.
The Washington Monument, which stands in the middle of the National Mall, is 169 meters tall.
Climate change is a ____ problem. It affects all parts of the Earth.
worldwide
Al-Zahrawi developed a ____ for amputating (cutting off) arms or legs without killing the patient.
method
The first state to ratify the U. S. Constitution, Delaware is rich in history.
The first state to ratify the U.S. Constitution
The professor who teaches the grammar class has taught in the ELC for a long time.
NO COMMA NEEDED (restrictive clause)
Use the second sentence to create an adjective clause and combine it with the first sentence.
The players are winning the game. The players are wearing red jerseys.
The players who are wearing red jerseys are winning the game.
NO COMMA (restrictive)
There has been an ____ increase in global temperatures during the first part of the 21st century.
exceptional
Al-Zahrawi was a doctor for the royal family during the Muslim ____ in Spain.
civilization
the cutting down of trees
I have known Jill Topham my best friend for over thirty years.
I have known Jill Topham, my best friend, for over thirty years.
Use the second sentence to create an adjective clause and combine it with the first sentence.
Our new car is the 2024 Acura Integra. (The 2024 Acura Integra has many safety features.)
Our new car is the 2024 Acura Integra, which has many safety features.