So far nobody has claimed the money______in the library.
A.discovered B.to be discovered. C.discovering D.having discovered
选A,求详细解释。(B为何不行)
In April,thousands of holidaymakers remained_______aboard due to the volcanic ash cloud.
A.sticking B. stuck C. to be stuck D.to have stuck. (为什么不选C,而选B)
I ____all the cooking for my famliy, but recently I've been too busy to do it .
A. will do B. do C. am doing D. had done
这个,选什么?
2.可以用stucking 么?
3.为什么不用had done
had done是过去完成时,即过去的过去,用该时态必须有一个过去的时间作为参照点。
如:He had left when we arrived. (had left 是以arrived这个过去时间作为参照)
可是你给的这个句子,I ____all the cooking for my famliy, but recently I've been too busy to do it .可以看到的时态是现在完成时(以现在时间作为参照),所以不可能选had done.
那这么说第二题可以用stucking 了?