He works very hard ,so he is -----a top student in his class A.in the way to become

问题描述:

He works very hard ,so he is -----a top student in his class A.in the way to become
B,on the way to become
C.in the way to becoming
D.on the way to becoming答案是D 为什么

D

因为on the way to doing sth "即将.“ 中的to 是介词, 介词后面必须接v-ing形式作宾语