—I’m really hungry now.
That’s because you have left your lunch .
A. having untouched
B. to be untouched
C. untouched
D. being untouched
网友回答
A. having untouched
B. to be untouched
(答案→)C. untouched
D. being untouched
解析：过去分词作宾补, your lunch与untouch为被动。