求大神帮忙做俩道题最好说出原因1.I don't know how_ (be) polite _(mak

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求大神帮忙做俩道题最好说出原因1.I don't know how_____ (be) polite _____(make) requests
2.It seems that ____(say) is much easier than _____ (do)

第一时间为你提供正确答案：
1 to be to make
how to do sth 如何做某事
be polite to do sth 有礼貌的做某事
2 saying doing
动名词做主语

再问： than 后面不是应该是形容词的比较级吗？

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