1. （教材P17）This is what makes them so special.
2. （教材P17）A simple restaurant was where he usually had the same meal of sausages, eggs and coffee.
3. （教材P17）The fact was that at the age of eight, he started training in Peking Opera on a daily basis.
4. （教材P15）This devotion and hard work is what we see reflected within his photos.
5. （教材P17）The question was when he started training in Peking Opera on a daily basis.
6. （教材P17）What impressed us was how this contributed to the development of Peking Opera.
观察上面句子，并分别写出加黑部分对应的句子结构：
