Is it always easier _____friends than to keep them?A.making B.make C.to make D.made

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C，形式主语

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C.to make
前后要对应嘛

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C ,对称结构。

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C
it is +adj(形容词)+to ...
固定结构

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c. 因为要前后一致。后面是 to keep them，所以前面应该选带to的不定式

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Is it always easier _____friends than to keep them?
C , 后面是to keep,前面也要对应是to do结掘闷构才能春卜比较

是不是交扒散穗朋友总是比和朋友相处简单？

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