He took the food eagerly because he had eaten nothing since dawn.
A.He had eaten nothing since dawn although he took the food eagerly.
B.The food was taken at dawn and he had nothing to eat then.
C.He had eaten something before but he took the food eagerly.
D.Having eaten nothing since dawn, he took the food eagerly.

Anne jogs every morning. It is very good for her health.
A.Anne jogs every morning and is very good for her health.
B.Anne jogs every morning, which is very good for her health.
C.Anne jogs every morning and then it is very good for her health.
D.Anne jogs every morning that it is very good for her health.

The review overvalued his latest film.
A.The review had a high opinion of his latest film.
B.The review turned down his latest film.
C.The review rejected his latest film.
D.The review gave his latest film a moderate appreciation.

Scarcely had she arrived home when the quake happened.
A.As soon as the quake took place, she arrived home.
B.The quake took place before she arrived home.
C.Hardly the quake happened when she arrived home.
D.No sooner had she arrived home than the quake happened.

"Report yourself to the police and you'll get lighter penalty," John told his brother.
A.John asked his brother to give up himself to the police.
B.John threatened his brother to report himself to the police.
C.John promised his brother a report of himself to the police.
D.John persuaded his brother to report himself to the police.

The pronoun "they" in paragraph 2 refers to ____.
A.discoveries concerning hereditary mechanisms
B.effects of genetic engineering misuse
C.cases of genetic deficiencies
D.possibilities for genetic deficiencies

The word "which" in paragraph 3 refers to ____.
A.activities of an overpopulated society's industry
B.the waste products dumped into our environment
C.activities of surplus human population
D.serious environmental pollution

According to the passage, to save our planet, biologists should work _______ .
A.harder and harder
B.accurately and objectively
C.on social and political purposes
D.with other social scientists

Which of the following is closest in meaning to the word "ramifications" in paragraph 4?
A.useful experiments
B.effective techniques
C.harmful consequences
D.latest developments

Education in early times was mostly aimed at ____.
A.teaching skills
B.learning to live
C.learning new lifestyles
D.imparting survival skills