问题
选择题
| 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 |
答案
答案：C
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| 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 |
答案：C