Whales are sea-living mammals. They therefore breathe air but cannot survive or land. Some species are very large indeed and the blue whale, which can exceed 30 meter length, is the largest animal which lives on earth. Superficially, the whale looks rather like a fish, but there are important difference in its external structure; its tail consists of a pair of broad, flat horizontal paddles (the tail of a fish is vertical) and it has a single nostril on top of its breadth, broad head. The skin is smooth and shiny and beneath it lies a layer of flat (blubber). This is up to 30 meter in thickness and serves to conserve heat and body fluids.4.. What is the text about?

A. Sea-living mammals
B. The description of mammals
C. The difference between whales and fish
D. Whales
E. How whales survive themselves

5. The length of a whale is……..

A. Is generally more than 30 meter
B. May be more than 30 meter
C. Is less than 30 meter
D. Ranges from 30 meter to more than 30 meter
E. Is 30 meter at the most

6. To tell the factual information, the writer uses…….

A. Passive voice
B. Direct speech
C. Reported speech
D. Simple past tense
E. Simple present tense