1.none后面是用单数还是复数？
2.例：Last week,only two people came to look at the house,neither of whom wanted buy it.是不是先行词不一定要在关系代词前？如果把“neither of whom”换成"both of them"前要加"and"，如果把两个句子连起来一定要用连词吗？用“逗号”不可以吗？还有“whom”不是用在从句中充当宾语的时候吗？难道在介词后可以这样用吗？
3.Cars do cause us some health problems-in fact far more serious ones than mobile phones do.帮我分析一下这个句子的结构成分。ones是同谓语吗？
4.It is easy to do the repair.All you need is a hammer and some nails.这边有All，那后面什么时候用单数，什么时候用复数？
5.For Tim this was the beginning of a new life ,one he thought he would never see.这里one是作同谓语，那“the one”有作同谓语的时候吗？
Have you read the book,the one concering the story of Song Dandan?这里的“the one”是同谓语？
6.The students who do best in examination are not always those with the best brains.
It's a little surprising that ahouse made of wood or bamboo may stay up in an earthquake while one made of steel and concret may fall down.
这两句中一个用“those”一个用“one”是不是用前面“the students”和“a house”决定的？
7.On stepping into the room this moring I was astonished to find the floor covered with what looked like tiny insects.这里的what=？说说what应怎么用？
8.The wings of the model plane are more than twice of its body.这里twice是动词吗？