If the letter to be mailing was placed on the writing table an hour ago,it is certain being there now.

问题描述:

If the letter to be mailing was placed on the writing table an hour ago,it is certain being there now.
In the long run,however,this hurry to shed full-time staff may be more harmful to industry as it is to the workforce.
各有一个错误.请分析详细一点.

上边一个改mailing为mailed 主动为被动,信不能主动寄出
后一题as 改为than 比较 more harmful……than