Explanation

　　1.The correct answer is E

　　There is no error in the sentence.

　　2.The correct answer is D

　　The error in this sentence occurs at (D), where there is a flaw in parallelism. To parallel the noun phrases previously used in the sentence (“his quest...” and “his opposition...”), “his support of” is needed in place of “he supported.”

　　3.The correct answer is D

　　Choice (D) is correct. It avoids the connectives error of the original by using the proper connective "not only...but also" to join the two prepositional phrases, "for its innovative design" and "for its environmentally friendly building practices."

　　以上就是这3道SAT改错题练习的全部内容，后面附有详细的答案解析。大家在备考自己的SAT语法考试的时候，多做一些改错题的练习对另外两种题型的解答也是有好处的，会更好的夯实基础，提高解题的效率。