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 ofD错了,D选项应该是changed

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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 ofD错了,D选项应该是changed

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 ofD错了,D选项应该是changed
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

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 ofD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.