why when what which这四个词的区别

why when what which这四个词的区别 选词填空.Why Which What What When Where 选词添句 What Why Which Who Where When who/which/what/when和that的区别 当宾语从句的引导词是who,which,what,when,where,how,why等表疑问时……. 宾语从句的引导词是who,which,what,when,where,how,why等表疑问时, 英语which、when、whose、what 怎么区别? what ,which 的区别 what,when,why,how,whose,where,whom,which在句子中充当的成分 what,which,who,whose,when,where,why,how这些疑问词的用法 特殊疑问句(what.when.where.why.which.who.how+一般疑问句)的特点 （选词填空）why、which、what、when、where ( )is your favourite season?