【简答题】We excessively use our washing machine until it is worn out _____ repair.
【判断题】The initial letter does not refer to the letter of establishing business relations.
【单选题】The letter ______ three days ago and it ______ yesterday. [ ]
D.
had been posted, was arrived
【单选题】It's a worn-out society theory. We seldom use it now.
【单选题】The use of standard components makes ()easier when they are worn.
【判断题】The initial letter does not refer to the letter of establishing business relations.
【单选题】Franklin compared himself to a worn-out carpet in order to show that he was too exhausted to be of any use to his country.