[单项选择]Since a circle has no beginning or end, the wedding ring is accepted as a symbol of ______ love.
A. successive
B. consecutive
C. eternal
D. insistent

[单项选择]Since a circle has no beginning or end, the wedding ring is accepted as a symbol of ______ love.
A. successive
B. consecutive
C. eternal
D. insistent

[单项选择]What has happened since the end of the ice age（）
A. Many species have developed a habit of migration.
B. Many species have become less sensitive to climate.
C. Many new species have come into existence.
D. Many species have moved further north.

[单项选择]

International Trade
Since the end of World War II, international trade has developed dramatically. All countries in the modern world join in worldwide trade, through which various sorts of merchandise and (51) materials arc exported in (52) for foreign currency, which means income wealth from (53) and job opportunity at home, and in the meantime, foreign goods are imported to provide consumers with (54) and welcome merchandise. Today, economic interdependence among countries is so (55) that no country can close its doors to the outside world, and the more prosperous the national economy, the more developed the foreign trade. Economic globalization is now a (56) in the world.
But in the past when old and new colonialism ruled the world there was no free and fair trade at all. Powers, (57) the British empire, the United States, Russia, Japan, divided the world into their spheres of influence&mdash
A. raw
B. primary
C. primitive
D. crude

[填空题]Since the end of World War Ⅱ, teachers have found themselves under considerable pressure to abandon the long-standing ______ model, though it had been in general use in second language teaching since the late 18th century.

[单项选择]Since China has a large population, the popularization of private cars will only bring serious social problems（）
A. 自从中国人口变多以来，私家车的数量只是一个不太严重的社会问题。
B. 自从中国人口变多以来，私家车的流行会带来很多严重的社会问题。
C. 由于中国人口众多，私家车的数量只会带来社会问题。
D. 由于中国人口众多，所以私家车的普及只会带来严重的社会问题。