答案：第一句不对,第二句也有问题.
解析：1.We none of us said nothing.
We和none of us在此处不可做同位语,属于基本句型主语重复,是最基本的错误.
如果LZ真的想用复合句型,可以考虑使用这句：
Not only they but I said nothing to...
2.I myself repaired the bike.
I和myself虽然说可以在简单句中做同位语成分,但那也是有条件的.这句话还是改为I repaired the bike by myself/on my own比较合理.