25. According to the passage, which of the following may be inferred?
(A) Life expectancy dramatically decreased during the Second World War.
(B) Life expectancy before the 19th century had remained almost unchanged.
(C) Discoveries of anti-aging drugs and genetic therapies will become rare in local papers.
(D) People living less than one hundred years will be soon regarded as extremely precious.

21. In what style is the passage mainly written? (A) Argumentative. (B) Comparative. (C) Expository. (D) Procedural.

22. What does “that” in the second paragraph refer to? (A) Anthropology. (B) Human origin. (C) Life expectancy. (D) The authority.

23. Why is life expectancy at birth in Sweden mentioned in the passage? (A) Because it has documented the life expectancy of its citizens for long. (B) Because it has set an example for people in the United States to follow. (C) Because the life expectancy of its people has been the longest among all countries. (D) Because the life expectancy of its people has grown steadily with each passing year.

24. According to the passage, what impacts have world events had on life expectancy? (A) They have shortened life expectancy. (B) They have lengthened life expectancy. (C) They have made life expectancy rise smoothly. (D) They have had no significant effect on life expectancy.

1. I ________ many difficulties when I first learned cooking. Many dishes were burned. (A) abandoned (B) encountered (C) interfered (D) oppressed

2. Claire has started to exercise every day in order to have a ________ and healthy body. (A) dead (B) lean (C) pale (D) whole

3. The paper must have been written in ________. There are many grammatical errors in it. (A) beak (B) cliff (C) haste (D) merit

4. Johnny is not ________ with the payment of his current job, so he is looking for a new one. (A) content (B) desperate (C) frustrated (D) respectful

5. Employees in the company are ________ for the death of their kind and beloved president. (A) cheering (B) hissing (C) mourning (D) preaching

6. The pottery vase fell to the floor and broke into ________. (A) crackers (B) fragments (C) strikes (D) vineyards