Historians agree that early American Indians came from Siberia,( )a long-vanished land bridge across the Bering Strait.

Historians agree that early American Indians came from Siberia,( )a long-vanished land bridge across the Bering Strait.


A、

cross


B、

crossing


C、

crossed


D、

to cross


【正确答案】:B
【题目解析】:

因为前文有谓语动词agree,所以空格处应该填非谓语,不选A,因为后文有名词,说明空格处的cross应该填主动的形式,不选C。cross在这里不是目的,而应该是一个伴随的状态,用doing的形式,选B。句意:历史学家一致认为,早期的美洲印第安人来自西伯利亚,跨越白令海峡上一座消失已久的陆桥。


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