We will not know the plan works till we have _ A tired out it B tried it out C tired it on

问题描述:

We will not know the plan works till we have _ A tired out it B tried it out C tired it on

楼主,你应该是打错了,应该是tried out ,(实验,尝试)不是tire out(筋疲力尽)假设是tired out ,那以上三个答案都说不通 ,个人感觉有D答案是 been tired out最好tire out 精疲力尽,使XX很疲惫,XX一般指人,例如工作...