It is worthwhile considering what makes “convenience” foods so popular, and____ better ones of your own.
A．introducesB．to introduceC．introducingD．introduced
C
考查句子結(jié)構(gòu)。Considering短語(yǔ)與introducing短語(yǔ)構(gòu)成并列關(guān)系。故C正確。
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