The copy machine has not been repaired because the part it requires ______
out of stocks.
A) is B) are C) to be D) to have been
这题是A
我想问的是 because 后面 the part it requires 是什么意思
require 不是动词了吗 加上is 不就有两个动词了吗
This shirt should be cleaned with neutral detergents and dried quickly to
limit browning as ____ by the manufacturer.
A) recommendation B) recommending C) recommended D) recommend
这题是C 我只是想确认这里的as后面代表的意思是否是 如同制造商推荐的意思
谢谢

1.需要的零件缺货2.如同制造商建议

1. require需要受词(查字典就有了)because the part [(that/which) it requires](关系子句)is out of stock(单数)此处的关代是'requires'的受词http://www.ldoceonline.com/dictionary/stock_1-> 1 ... 蓝色字部份 这是固定用法，不能乱改成stocks