It is worth considering what makes “convenience” foods so popular, and better ones of your own.
A. introduces
B. to introduce
C. introducing
D. introduced
网友回答
A. introduces
B. to introduce
(答案→)C. introducing
D. introduced
解析：考查非谓语动词。introducing 和considering 是并列的，用在worth的后面，表示“值得做”。