The best title for the passage is " ______".

A . Fire Upstairs in the Neighbor‘s House B . A Mysterious Fire That Causes No Death C . Teen Braves Blaze to Help Neighbors in Need D . Importance of Neighbor‘s Help in Times of Difficulty

A . How Chocolate Was Made for the War B . How Chocolate Helped Win the War. C . What Were the Requirements about Chocolate for the War D . What Were the Difference between D Ration Bars and K Ration Packs

A．The Threatened Extinction of Marine Life. B．The Cultivation of Oysters. C．The Discoveries Made by Marine Biologists D．The Varieties of Wild Oysters. 此题为多项选择题。

A) Human behavior. B) Creatures of Society. C) The Science of Custom. D) The Functions of Cultures.

A．Nobody Knows When Salt Began to Be Used B．The Uses and Importance of Salt in History C．Thousands of People Were Punished Because of Salt D．Salt Was Important in History

A．Surroundings B．Intelligence C．Dependence on Environment D．Effect of Education

A．The Twenties B．The Great Crash C．The Depression D．The End of World War Ⅰ

A．Numeracy might explain B．Save early, save wisely C．How to handle the crisis？ D．The erratic pattern of payment

A. Garbage and the Earth B. Fossil Fuel and Garbage C. Land and Garbage D. Garbage----Energy Source

A:The benefits of a less stressful day B:How to solve teenagers’ sleep problem C:The benefits of later school start time D:The reasons why teenagers sleep differently

A．Mr.Obama"s Dilemma. B．Universitie"s Rising Cost. C．Universities" Challenges. D．Anger about College.

A．The Eye as the Window to the Soul B．Cultural Differences in Reading Emotions C．Effective Methods to Develop Social Skills D．How to Increase Cross-cultural Understanding

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A．A World Clean Yet in Comfort. B．Conserving Before It's Too Late. C．There Is Only One Earth. D．The Fuel-Hungry Planet.

A．Warning Against Making Online Friends B．Messages One Can Get Through the Internet C．How to Make Online Friends D．How to Protect Your Child on the Internet

A．National and For-profit Universities. B．The Expansion of Universities. C．University Education of the USA. D．Dollars and Degrees.

A．Cuckoos—Bringer of Spring B．Cuckoos—Pest among Birds C．Cuckoos—Protector of Birds D．Cuckoos—Invader or Defender？

A．Anthropology B．The Progress of Human Beings C．The Civilizations D．The Study of Anthropologists