核心问题
（a）She spoke kindly to him. (LDCE)
(b) They kindly asked us to the concert. (ELD)
kindly 究竟应放在什么地方呢?
词典解答
kindly 如同其他方式副词一样,通常放在句子末尾或动词之后。在这种情况下, kindly 是修饰谓语动词的。例如:
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He was ill for some days, and they nursed him kindly. 他病了好几天了，他们亲切地看护着他。
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The nurse behaved kindly towards her patients. (FWF) 这位护士对待病人很和善。
但是, kindly 也可以放在动词之前, 主语之后。在这种情况下, kindly 是修饰整个句子的, 可以叫做句子状语。
They kindly asked us to the concert. = It was very kind of them to ask us to the concert. 他们请我们去听音乐会,真是太好了。
下面是类似的例句：
The owner very kindly took us in and gave us a bed for the night. (PEG) 房东把我们带了进去,并给了床位,让我们过夜,真是太好了。
kindness/a kindness 见 success/a success
knife and fork 见 and