● The Internet is the worlds largest computer （71) . （71) A.network B.device C.display D.

Is China the third largest country in the world？（)

What is the main idea of the news item？A．The pollution across the world is more and more s

New Zealand is sometimes called the worlds biggest farm. It is the worlds largest exporter

The blue whale is （) largest animal in the world.

Over the past 20 years, the Internet has helped change our world in way or another for

Over (the past) 20 years the Internet has (helped change) our world in (either) way or an