[单项选择]Australia began to assume its modern configuration by the Eocene Epoch, some 50 million years ago, when Antarctica broke away and drifted southward.
A. status
B. sphere
C. shape
D. situation

[单项选择]Australia began to assume its modern configuration by the Eocene Epoch, some 50 million years ago, when Antarctica broke away and drifted southward.
A. status
B. sphere
C. shape
D. situation

[单项选择]Australia began to assume its modem configuration by the Eocene Epoch, some 50 million years ago, when Antarctica broke away and drifted southward.
A. status
B. sphere
C. shape
D. situation

[单项选择]

Text 3
Since USAID began its first HIV/AIDS prevention efforts eight years ago, the epidemic has changed dramatically. HIV has spread to every region of the world. Millions of people infected with HIV during the first decade of the epidemic are developing opportunistic infections and other AIDS-related illnesses, and many are dying. Women and children are among those most vulnerable to HIV infection. As HIV prevalence and AIDS mortality soar, millions of children will lose their parents.
HIV/AIDS is having a devastating impact on the health and well-being of families, communities and nations worldwide. The epidemic’s effects on the structure of societies and the productivity of their members undermine efforts to promote sustainable development around the globe. USAID’ s approach to slowing the spread of HIV/AIDS relies on strategies tested and refined over the past eight years. At the same time, the Agency is moving forward to address new challe
A. proves that the epidemic has been spreading very fast over the past eight years
B. implies that the USAID was not very successful in the past eight years
C. shows that the epidemic has spread too fast to be controlled over the past eight years
D. explains that the epidemic has been controlled

[单项选择]"Since USAID began its first HIV/AIDS prevention efforts eight years ago, the epidemic has changed dramatically" this statement______.
A. proves that the epidemic has been spreading very fast over the past eight years
B. implies that the USAID was not very successful in the past eight years
C. shows that the epidemic has spread too fast to be controlled over the past eight years
D. explains that the epidemic has been controlled

[单项选择]The modern English began in the ______ century.
A. 14th
B. 15th
C. 16th
D. 17th

[单项选择]Scientists assume that unrestrained population growth and dwindling resources may force humans to look to the sea for food.
A. unavoidable
B. unexpected
C. unchecked
D. unfortunate

[单项选择]What can we assume from the passage
A. Most people who feel they have been wronged have a ready remedy in courts of law.
B. Many people would like to bring a case to court, but are unable to because of the coat and time required.
C. The judicial system in the United States is highly acclaimed for its efficiency.
D. Pretrial conferences will someday probably have replaced trials completely.

[单项选择]One may assume from this article that
A. pigs have remained unchanged for centuries
B. pigs are naturally vicious animals
C. pigs make a significant contribution to modem life
D. pigs are better than any other animal for laboratory