早教吧 育儿知识 作业答案 考试题库 百科 知识分享

Ifthewholeprogrambeforehand,agreatdealoftimeandmoneywouldhavebeenlost.

题目详情
If the whole program _______ beforehand, a great deal of time and money would have been lost.
▼优质解答
答案和解析
如果整个事情之前没有___那么许多时间和金钱就被浪费了.
大概是 没有做
unfinished