contribute sth to也可以说成contribute to

题目

contribute sth to也可以说成contribute to
另外还有contribute sth towards和contribute towards sth
这是新概念2册85课原文：
I have just received a letter from my old school informing me that my former head- master,Mr Regmald Page,will be retiring next week.Pupils of the school,old and new,will be sending him a present to mark the occasion.【 All those who have contributed towards the gift will sign their names in a large album which will be sent to the headmaster's home.】We shall all remember Mr Page for his patience and understanding and for the kindly encouragement he gave us when we went so unwillingly to school.A great many former pupils will be attending a farewell dinner in his honour next Thursday.It is a curious coincidence that the day before his retirement,Mr Page will have been teaching for a total of forty years.After he has retired,he will devote himself to gardening.For him,this will be an entirely new hobby.But this does not matter,for,as he has often remarked,one is never too old to learn.
【】中就有contribute towards的用法，

答案

不可以,只能是contribute sth towards或contribute sth to
towards等同于to
contribute是及物动词,后面一定要加宾语