过去的虚拟 ,用过去完成时
1.had not been
2.had been
3.will lend
4.rains
5.would not have been
6.will
1.to solve
2.to invite
3.owning
4.to be
5.discussed
1.I must leave the company.,where I have nothing to do
2.这个句子没办法这样改吧
3.Who was the first man ,who made such an experiment?
4.The bridge which will be built in2008 will bethe longest one in the world