摘要： He is a man of few words, and seldom speaks until to. A. spoken B. speaking C. speak D. be spoken 此题容易误选B.认为until是介词.后接动词时用动名词形式.其实.此题应选A.until spoken to为until he is spoken to之省略.句意为“他是个沉默寡言的人.别人不同他说话.他很少同别人说话 .按英语习惯.一些表示时间.地点.条件.方式.让步等的状语从句.若其主语与主句主语一致.且从句谓语包含动词be,那么可将从句的主语和动词be省略: You must study hard while young, or you will regret when old.趁年轻时要努力学习.不然到老了你会后悔的. I won't go unless invited. 我不会去,除非请我. Look out for cars when crossing the streets.过马路时要注意汽车. While waiting I was reading some old magazines.等的时候我在看一些旧杂志. He worked very hard though still rather poor in health.尽管身体还不好.但他仍努力工作 He will work hard wherever sent by the Party.无论党把他派往哪里,他都会努力工作.

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