...ll symbols of the fast speed of development.这两个句子里的developing和development能互换吗?更进一步,如果是the speed of
China's development,这个短语中的development能换成developing吗,为什么?多谢!
...ted 为什么不使用过去完成时呢?而The
hospital had been bombed 和 Hans had made his way back 这2句话使用过去完成时又是参照哪个过去时间点或过去动作呢?4)his unit
was lost and all records of him had been destroyed.- 为什么不是had been
lost?all
records ...
这类从句的时态只与主句与从句的先后有关系,而与主句的时态没有关系吗He looks as if he were ill.He looked as if he were ill.He looks as if he had been ill.He looked as if he had been ill.这四句是不是都对从句的虚拟语气形式不是绝对的过去、现在...