词汇1E2

25. _________, the Indians of North America taught the newcomers many things about farming techniques and crops. 8a

[A] Farmers being so skilled [B] They are skilled farmers [C] Being skilled farmers [D] Due to skilled farmers

26. The Indians, who had a highly developed culture in many ways, __________ the strange European manners and customs.8a

[A] should have been ignorant of [B] could have been aware of [C] must have been curious about [D] may have been uncertain of

27. The Iroquois Indians had developed a highly sophisticated system of government to keep the various branches of the tribe from fighting one another. 8a [A] classified [B] beneficial [C] mature

[D] incompetent

28. From these few examples the _________ of the Indian influence on American language, art forms, government, and eating could be easily seen. 8a [A] extent [B] service

[C] contribution [D] communication

habits