Question

EXERCISE 15 Decide which of the following sentences contain a nonessential adjective clause. Put commas in those sentences. If the sentence doesn't need commas, write NC.
3. Kids who spend a lot of time on the computer don’t get much exercise.
4. The Freecycle Network™ which was created in 2003 helps keep things out of landfills.
5. People usually have a lot of things they don’t need.
6. Berners-Lee whose parents were very educated loves learning new things.
7. At first Amazon was a company that only sold books.
8. Meg Whitman who ran eBay for ten years left the company in 2008.
9. Berners-Lee worked in Switzerland where a physics laboratory is located.
10. The Windows operating system which was developed by Microsoft came out in 1985.
11. Did you like the story that we read about Berners-Lee?
12. The computer that I bought three years ago doesn’t have enough memory.
13. The Web which is one of the most important inventions of the twentieth century has changed the way people get information.
14. Bill Gates who created Microsoft with his friend became a billionaire.
15. Steve Jobs who died in 2011 helped create the Apple computer.
16. It’s hard to remember a time when computers were not part of our everyday lives.
17. Do you remember the year when you bought your first computer?

Answer 1

Answer:

3. Kids who spend a lot of time on the computer, don’t get much exercise.

4. The Freecycle Network™, which was created in 2003, helps keep things out of landfills.

6. Berners-Lee, whose parents were very educated, loves learning new things.

8. Meg Whitman, who ran eBay for ten years, left the company in 2008.

10. The Windows operating system, which was developed by Microsoft, came out in 1985.

13. The Web, which is one of the most important inventions of the twentieth century, has changed the way people get information.

14. Bill Gates, who created Microsoft with his friend, became a billionaire.

15. Steve Jobs, who died in 2011, helped create the Apple computer.

Answer 2

Answer:

Kids who spend a lot of time on the computer don’t get much exercise. - Commas: "Kids, who spend a lot of time on the computer, don’t get much exercise."

The Freecycle Network™ which was created in 2003 helps keep things out of landfills. - Commas: NC

People usually have a lot of things they don’t need. - Commas: NC

Berners-Lee whose parents were very educated loves learning new things. - Commas: NC

At first Amazon was a company that only sold books. - Commas: NC

Meg Whitman who ran eBay for ten years left the company in 2008. - Commas: "Meg Whitman, who ran eBay for ten years, left the company in 2008."

Berners-Lee worked in Switzerland where a physics laboratory is located. - Commas: NC

The Windows operating system which was developed by Microsoft came out in 1985. - Commas: "The Windows operating system, which was developed by Microsoft, came out in 1985."

Did you like the story that we read about Berners-Lee? - Commas: NC

The computer that I bought three years ago doesn’t have enough memory. - Commas: NC

The Web which is one of the most important inventions of the twentieth century has changed the way people get information. - Commas: "The Web, which is one of the most important inventions of the twentieth century, has changed the way people get information."

Bill Gates who created Microsoft with his friend became a billionaire. - Commas: "Bill Gates, who created Microsoft with his friend, became a billionaire."

Steve Jobs who died in 2011 helped create the Apple computer. - Commas: "Steve Jobs, who died in 2011, helped create the Apple computer."

It’s hard to remember a time when computers were not part of our everyday lives. - Commas: NC

Do you remember the year when you bought your first computer? - Commas: NC