what for =why吗?

what for =why吗? what for = why 造句 what 、、、for =why what 、、、for提问时怎么回答 English.what …for等于why吗? 在定语从句中Why为什么等于why=for which 不是Why＝for what What for是不是等于Why?若是,那么What for是用Because来回答吗? what for和why的区别 what for,why not,what's up和so why等于what for吗,什么时候等于for what在宾语从句中为什么why可以转换为for what 如：Do you know why he is late?这个句子的同义句是Do you know for what he is late,而不是Do you know what for he is late？ 请问for what =why 有什么区别,分别在什么情况用 ( ) was Betty late for school yesterday?A.Why B.What C.What reason D.What for what for 的答语用什么?because...还是for...what for 不是等于 why ---------------you join us for lunch?A what about B what if C why D why not ( ).____do you usually use your computer___?( ).____do you usually use your computer___?A.What;for B.Why;/ C.Why;for D.Both A and BWhat.for=Why ,那么选D么?怎么觉得有点怪怪的额、、、嗯? what is the best time time for exercising?why? That is what i am here for为什么不用why ()did they go to Beijing() A why,for B What,for C Why,about D What,about What for is tomorrow his birthday?what for 与why 有什么区别