when he came hack after an absence of 20 years ,he found his hometown completely _______.

问题描述:

when he came hack after an absence of 20 years ,he found his hometown completely _______.
A changing Bto be changed C to change D made of
D错了,D选项应该是changed

changed.
根据时态啊
一般来说,-ing表示正在发生的,to do表示将要去做,有将来的含义.