We've assumed that multi-level page tables only have two levels: a page
directory and then pieces ofthe page table.A piece of 后面只能加不可数名词,为何pieces of 后可以加可数名词page table (页表)?请教各位老师!
1. We managed to arrive at the hall before the concert had started.2. He came in before I had done half the work. 请教老师,我们都知道发生在 “过去的过去” 的动作用过去完成时态,可是句中介词before前的动作先发生用过去时态;before后...
I think the most
useful technologies are computers and theInternet, which can make our learning
more efficient and we all benefit from it.想请问老师这句话里面
we all benefit from it 的it
应该是代指 computers and theInternet
这样应该是双数,为什么不用these或者them...
If you were to have asked me, I would have been only too willing to help.If you were to have explained your problem to me, I would have been able to help you.两个if分句中的动词形式是虚拟语气吗?为什么were to 不表示将来,而表示过去?有什么原因吗?谢谢老师的...
...只用作及物动词,注意其后要接宾语或用被动语态。如:The car was so badly damaged that it had to be abandoned as a total
loss. 汽车损坏严重,只好彻底报废。The poor little puppy had been abandoned. 那可怜的小狗被人遗弃了。The project had to be
abandoned...