英语直接宾语和间接宾语互换时谓语动词后加的介词

有的用to,有的用for,得视动词而定。如My father bought me a bike.可变为
My father bought a bike for me.
I'll fetch you a chair.变为I'll fetch a chair for you.
用to侧重指动作的方向，表示朝着，向着，对着某人。
用for 侧重指动作的受益者，表示为了某人，替某人。
（需借助to的）bring, give, lend, hand, offer, pass, pay, promise,
return, send, show, teach, tell, write, ask,等。
（需借助for 的） buy, call, cook, choose, draw, find, get, make, order, sing, save, spare,等。

加to的：post,show,return,sell,send,write,take,bring,throw,feed,read,promisemoffer,pass,refuse,teach,hand,lend,give.
加for的：
cook,buy,choose,pick,get,find,save,order,book,make,leave,call,fetch
两者都行的：
sing,play

一样的也加TO啊！
He buy me a book.
he buy a book to me.