76. Both the question "WELL, do they or don't they?" and the question "What is going on?" suggest ____.

1. the high incidence of leukemia
2. the advent of bewilderment among people
3. the warning of the worsening air pollution
4. the tense relation between Bristol and London

77. What would the author say of the results of the study?

1. Enlightening.
2. Insignificant.
3. Reassuring.
4. Apparent.

78. What can be suggested from the result of the second study?

1. There does exist a danger zone near power lines.
2. There is much to be improved in terms of design.
3. There is nothing to worry about as to power lines.
4. There is no link between the first and second study.

79. It can be inferred from the passage that the British outcomes ____.

1. are expected to convince nobody but pedants
2. were found to have left much room for doubt
3. could have implications in such countries as the U.S.
4. will be consistent with the Japanese ones in the near future

80. To conclude, the author ____.

1. reassures us of the reliability of the latest research in Britain
2. asks for improved measurements for such an investigation
3. points out the drawbacks of the latest research in Britain
4. urges further investigation on the issue

(Reference keys.)