In the very distant geological past, all animals were aquatic. The very first vertebrates or animals with backbones, of which we have any fossil record, lived in water. These vertebrates, the fish, were adapted to underwater living. Their streamlined bodies were covered with scales to reduce surface friction: they had muscular tails so that they could swim swiftly in such a dense medium as water; and they were endowed with gills for breathing underwater. Descendants of fish-type ancestors crossed the seashore barrier and accommodated themselves to life on land. As amphibians, they possessed limbs instead of fins and lungs instead of gills. But they never became completely free of the bonds that tied them to the water; even today many amphibians return to the water to lay their eggs. Millions of years after the first clumsy amphibians crawled over the land, newer types of land dwellers appeared, these animals give rise to the present-day reptiles and mammals. They were completely converted for land dwelling, with bodies and biological activities far different from those of fish. With these special adaptations, mammals have been able to colonize the woods and meadows, the deserts and high mountains, often far removed from the sea.

Fish are suited to underwater life because of their ______

What does the author mean by staring that, "At interpersonal levels, tone may reflect ideas and feelings over and above the words chosen" in lines 8- 9?

The word “ integral” in line 13 is closest in meaning to .....

According to the passage, Charlotte Taylor believes that women in 1970s .............

According to the second paragraph, a useful theory is one that helps scientists to _______.

It can be inferred from the passage that Walt Whitman________.

According to the passage, an exuberant tone of voice may be an indication of a person’s ____________.

What is the main purpose of the passage?

What does the passage mainly discuss?

Which of the following is NOT true about humpback whale music?

The word "rough"in the passage  is closest in meaning to ...........

What does the passage lead you to believe?

Scientists concluded from the experiment with chimpanzees and chocolate chips that chimpanzees __________.

It can be inferred from the passage that the author believes that business operated by women are small because ................

The word formulaic is closest in meaning to___________.

According to the passage, students working for their first degree at .............. are called undergraduates.

According to the passage, all of the following contributed to the spread of English around the world _________ .

The reason why telecommuting has not become popular is that the employees .............

When the writer first went to London, he was disappointed because ________.

What is the purpose of the passage?

The word “derived” in paragraph 2 is closest in meaning to ______.