Mr.白马王爷
I'm from China.I can speak chineseI like English.介词是一种用来表示词与词, 词与句之间的关系的词。在句中不能单独作句子成分。介词后面一般有名词代词或相当于名词的其他词类，短语或从句作它的宾语。介词和它的宾语构成介词词组，在句中作状语，表语，补语或介词宾语。并且在定语从句“介词+whom/which”的结构中，不能用that 代替whom/which。She is a good student from whom we should learn. 疑问词:Why where what which whom whose when how
