扫描二维码，直接登录
题库 / Prep2007E2-SC-133
A recently published report indicates that the salaries of teachers continue to lag far behind other college-educated professionals, because they make an average of nearly $8,000 a year less at the start of their careers and almost $24,000 less a year by the time they reach the age of 50.
other college-educated professionals, because they make an average of nearly $8,000 a year less at the start of their careers and almost $24,000 less
other college-educated professionals, by an average of nearly $8,000 a year at the start of their careers, to almost $24,000
what other college-educated professionals are paid--making an average of nearly $8,000 a year less at the start of their careers and almost $24,000 less
those of other college-educated professionals--by an average of nearly $8,000 a year at the start of their careers to almost $24,000 less
those of other college-educated professionals--by an average of nearly $8,000 a year at the start of their careers, and by almost $24,000
不知道DE，破折号后面的by。。是个什么结构，介词短语？破折号后面可以是随便任何成分，句型吗
登录 或 注册 后可以参加讨论