24.
(A) from
(B) than
(C) out
(D) on

20. (A) For (B) Being (C) To be (D) Through

21. (A) whatever (B) each other (C) their (D) one another

22. (A) however (B) of what (C) in that (D) whose

23. (A) with (B) in (C) for (D) about

25. (A) compare with (B) work for (C) run after (D) look into

1. The word “flliisoi^” is closest in meaning to_. (A) definite (B) illuminating (C) misleading (D) exceptional

2. The author mentions the cow and the horse in paragraph 2 in order to_. (A) distinguish the functioning of their digestive systems from those of East African mammals (B) emphasize that their relatively large body size leads them to have feeding practices similar to those of East African mammals (C) illustrate differences between ruminants and nonruminants through the use of animals likely to be familiar to most readers (D) emphasize similarities between the diets of cows and horses and the diets of East African mammals

3. Which of the following herbivores has to eat large quantities of plant stems because it gains relatively little energy from each given quantity of this food? (A) The gazelle (B) The wildebeest (C) The zebra (D) The topi

4. All of the following are true of East African gazelles EXCEPT : (A) They digest their food very quickly. (B) Microorganisms help them digest their food. (C) They are unable to digest large food particles unless these are chewed down considerably. (D) They survive well even if food supplies are not abundant.

5. Which of the following is true of wildebeests? (A) They eat more stem matter than zebras do. (B) They are able to digest large food particles if the food is of a high quality. (C) They tend to choose feeding areas in which the vegetation has been worn down. (D) They are likely to choose low-quality food to eat in periods when the quantity of rainfall is low.