It is worth considering what makes “convenience” foods so popular, and_______ better ones of your own.
A．introducesB．to introduceC．introducingD．introduced
C
考查短語: 值得做某事 be worth doing,此題中前面句式是It is worth considering，and 后的句子與前面的句子結(jié)構(gòu)相同，也是It is worth，后用doing，所以選C。
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