The plan is heard _____ so well that we don't need to make any ch_英语解答

The plan is heard _____ so well that we don't need to make any change.
A designed B to be designed
为什么不用B

人气：133 ℃　时间：2020-04-15 07:20:12

解答

designed过去分词表示计划已经设计好了
而B中to be designed表示将要被设计,从后面可以看出明显方案已经设计好了