Punctuating Restrictive And Nonrestrictive Elements

In which of these sentences is the list correctly punctuated?

Which sentences contain a restrictive or nonrestrictive relative clause? Check all that apply.

Read the sentence. Christopher Columbus born in Genoa never did reach mainland North America. Which revision is necessary to create proper punctuation within the sentence?

Which sentences are punctuated correctly? Check all that apply.

Read the sentence. An expert in organ transplants, the chief surgeon of the hospital routinely spoke at conferences. The underlined portion of the sentence is known as a(n)

Read the sentence. I am planning a trip to London with my uncle, Shazia and Nanette. Which revision is necessary?

Which sentence contains a nonrestrictive clause that is punctuated correctly?

Read the sentence. The peripheral nervous system—which is a network of nerves extending from your brain and spinal cord to all parts of your body carries signals back and forth. Which revision of the sentence is now properly punctuated?

Which sentence contains an underlined restrictive clause?

Read the sentence. Theodore Roosevelt the twenty-sixth president of the United States was the youngest president to ever hold office. Which revision of the sentence is now properly punctuated?