宾语从句中what,which,that,where,when使用时的区别答:He doesn’t care if it isn’t a fine day.他不在乎天气是否好。whether常与or not连用,不能用if代替。作介词宾语要用whether不能用if。从句是否定句时一般用if引导。特殊疑问意义who, whom,which,whose,what, when,where, why,how,whoever,whatever,whicheverPlease tell me what you want....