Grass is probably the most successful living plant in...

Câu hỏi: Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer for each of the blanks from 25 to 29.
Grass is probably the most successful living plant in the worlD. There are over 9,000 different types of grasses and they are (25) ___________in every region on earth. They are the (26) ___________flowering plants that can exist in the freezing (27) ___________of the Arctic and Antarctic.
Grasslands support a wide range of animal life, from tiny insects and birds to huge animals such ascows and lions. All of them depend on grass in one way or another.
Grass (28) ___________ very quickly after it is cut or damaged. Unlike other plants, the new leaves grow from below the soil, not from the top of the plant. That is why large families of animals are able to live together In one area. As soon as they have eaten all the grass there, a fresh meal is always (29) ___________ because the plants start to grow again.
The word or phrase which best fits the gap (28) is...
A. repeats
B. recovers
C. reduces
D. remains