专四模拟试题（完型篇9）

文章作者 100test 发表时间 2011:03:17 21:27:25
来源 100Test.Com百考试题网

　　Decide which of the choices given below would correctly complete the passage if inserted in the corresponding blanks. Mark the correct choice for each blank on your ANSWER SHEET. The United States is well-known for its network of major highways designed to help a driver get from one place to another in the shortest possible time. ___1___ these wide modern roads are generally ___2___