His clothes,though old and worn, looked clean and of good quality. 他的衣服虽然很旧,但看上干干净净,质地很好。 这一句中,主句的谓语动词looked,为什么加ed?是过去分词吗?如果说表被动的话,不是成为一个独立的句子?还是说是过去...
In some places government offices that manage petitis submited by citizens seeking redress ofinjustices say they would put people on blacklists if they cause disturbance while doing so.老师好,这里的while doing so逻辑主语是谁,do so是指前文做的什么呢
Shawn didn’t compete, because he hates competition. He prefers activities that call for cooperation.Shawn didn’t compete because he hates competition. He just didn’t feel well enough to race. Different meaning of because有了一个逗号,句子意思侧重不一样了,请分析。