The train was supposed to arrive an hour ago.The train was supposed to have arrived an hour ago.请教老师,这两句话的an hour ago 指的都是现在说话时的一小时前吧?它们可否解释为suppose时的一小时前?
...on.请问老师,这里的having either expressed.....exclamation是伴随状语么还是非谓语动词ing形式作后置定语修饰a set of words complete in itself?还有就是,新概念3自学导读上说ing形式的后置定语都带有正在进行的意味(不论后置定语前是否...
...hat do we got to show for
it?这句话不定式是what的定语还是目的状语?有点分不清楚。 2.Twelve enemy fighters had
been brought down.这是牛津词典的一个例句,句子是过去完成时的被动语态,但不是说用过去完成时要有个过去的时间参照吗?这...