今天的每日一题，百利天下出国考试为小伙伴们带来的是写作习题，希望对大家的SAT考试有所帮助。
Writing:Improving Sentences
Part or all of the following sentence is underlined;beneath the sentence are five ways of phrasing the underlined material.Select the option that produces the best sentence.If you think the original phrasing produces a better sentence than any of the alternatives,select choice A.
The North American continent,first colonized by people from Siberia, crossing the now sunken land bridge between Siberia and Alaska about 15,000 years ago.
(A) The North American continent, first colonized by people from Siberia,crossing
(B) People from Siberia first colonized the North American continent,who crossed
(C) First colonized by people from Siberia was the North American continent,they crossed
(D) First colonized by people from Siberia,who crossed the North American continent,
(E) The North American continent was first colonized by people from Siberia,who crossed
答案：E
解析：
Choice (E) is correct.It avoids the sentence fragment error of the original by providing a main verb ("was") to indicate the action taking place in the sentence.
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