一、
1.that
先行词是teachers and schools,既有人又有物,引导词用that,而不能用who或which.
2.where
live是不及物动词,因此place不能作live的宾语.因此要使用关系副词where,相当于in which.
二、
Is your classroom cleaned every day?
I was bought a present (by my presents) on my last birthday.
Chinese is spoken in China.
第二大题的这类题目,一般是把宾语提前,再加上相应的be动词和过去分词,以及句子的其他成分.“by……”可加可不加,看具体情况吧.