I'm from China.
I can speak chinese
I 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