The personal income tax did not become permanent in the United States until the First World War; before that time the federal government was dependent on tariffs to be their main source of revenue.


the federal government was dependent on tariffs to be their main source of revenue

the federal government had depended on tariffs as its main source of revenue

tariffs were what the federal government was dependent on to be its main source of revenue

the main source of revenue for the federal government was dependent on tariffs

for their main source of revenue, tariffs were depended on by the federal government

加入错题本 分享
纠错
考题讲解
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
求讲解

登录 或 注册 后可以参加讨论

OG2018V-SC