参考答案及解析：
　　1.The correct answer is E

　　Explanation

　　Choice (E) is correct. It avoids the error of the original by removing the

　　unnecessary pronoun “They,” and by using a well-constructed phrase, “The color and flavor … are …

　　2.The correct answer is C

　　Explanation

　　Choice (C) is correct. It avoids the error of the original by replacing “them” with “whom” and by using an appropriate verb form, the singular “was,” to agree with the singular “neither.”

　　3.The correct answer is E

　　Explanation

　　Choice (E) is correct. It avoids the comma splice error of the original by replacing the second independent clause with a modifying phrase (“during a period of expansion known as the Viking Age”).

　　4.The correct answer is E

　　Explanation

　　Choice (E) is correct. It avoids the subject-verb agreement error of the original by replacing the singular verb “was” with the plural verb “were” to agree with the plural subject “All.” It also provides the present participle “including” to avoid any potential ambiguity associated with the relative pronoun “which.”

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