0508语法求助

jackloveUID: 183611

9 United States income taxes are paid to the Internal Revenue Service, ----funds for use by the government.
A> which distributes  B> and distributes C> the distribution of
这个选A的话，by怎么解释呢？

18 Approximate 92 percent of the world's trading goods are transported by ships.

%percent of +n + 动词单数 这个经常见到，这里是为什么呢？ 难道是goods可数？

22 Approximately four percent of human body weigh is made up of fat in me organs, skeletal muscles, and central nervous system.

怎么该？

avexUID: 159089

by由，按照
美国的税收将给与国税局，国税局将这笔资金分配用于政府

18 改副词
后面动词的单复由名词决定，goods可数

22 你的题炒错了，去看gif
    weigh - weight

jackloveUID: 183611

谢谢