4. It can be inferred from the passage that many of the volunteers _____.
(A)were not men
(B)did not die
(C)were not bitten by the insect
(D)did not participate in the experiment

10.(A)warning (B)warn (C)warned (D)warming 

1. According to the passage, Maass went to Cuba to _____.(A)do nursing work (B)do research on yellow fever (C)continue her education (D)teach people about sanitation

2. It can be inferred from the passage that the research was probably supported by the _____. (A)hospital (B)army (C)volunteers (D)researchers

3. According to the passage, Gorgas and Reed had previously looked for the cause of yellow fever by studying  _____.(A)sanitary conditions (B)mosquitoes (C)related diseases (D)victims of the disease

5. It can be inferred from the passage that, as a nurse, Maass was ______ (A)ambitious (B)dedicated (C)inexperienced (D)overworked

6. The ending end of education is to direct and help to fulfill a man's potentials in life. This means that _____.(A)education can do no more than directing and helping a man to realize his potentials. (B)the aim of education is not to direct but to help a man realize his potentials. (C)education has nothing to do with one's potentials. (D)the ultimate purpose of education is to direct and help a man to realize his potentials.

7.A few books read thoroughly will be of more value to the reader than many skimmed through and forgotten. Which of the following expressions conveys a similar idea? (A)All that glitters is not gold. (B)Art is long; life is short. (C)Quality matters more than quantity. (D)A rolling stone gathers no moss.

8. An educated man is not so much a man of learning, as a man whose intelligence has been awakened, and whose powers of observation, reasoning and thought have been trained. We are told that _____.(A)an educated man is not a man of learning (B)an educated man is a man of learning only (C)a lot of learning is sufficient for an educated man (D)to be an educated man, one has to be a man having more than knowledge

9.Which of the following words can be used to replace the word contract in "contracting the disease"? (A)acquire (B)expose (C)make (D)trace

10.Which of the following words can best replace the word conduct in "conducting experiments"? (A)perfume (B)perform (C)probe (D)prepare