Thank the netizen named “Huang Ming” so much for coming up with the pertinent opinions and suggestions to which must be paid much attention and gratefully accepted!

上面这个句子中的定语从句其实是有所省略的。要判断上面这个句子对不对，只要把省略的部分补一下就很清晰了：

...to which must be paid much attention and gratefully accepted

= ...to which must be paid much attention and to which must be gratefully accepted

很显然，and 的前面部分是没有问题的，但 and 的后面部分就有问题了，因为 accept 无需搭配介词 to。

现仅就定语从句部分分析，本句如果仍然用被动形式，to 必须后置, 不能使用to which：

... the pertinent opinions and suggestions which must be paid much attention to and gratefully accepted!

如果本句改用主动语态，可以有两种写法：

1.  the pertinent opinions and suggestions to which I must pay much attention and which I must gratefully accept!  前半句用to which, 后面的定从不能省略which.

2. the pertinent opinions and suggestions which I must pay much attention to and gratefully accept! 这样也是对的。

为了便于大家理解，请看外刊例句：

【1】 The pertinent comments and suggestions to which I pay much attention and gratefully accepted!

【2】The pertinent comments and suggestions which I pay much attention  to and gratefully accepted!

我的观点是以上2个句子是正确的，胡德忠老师观点是 第1个是错误的，第2个是正确的。

【1】This is the song (which) you must sing and listen to.【正确】

【2】This is the song to which you must sing and listen.【错误】

我的观点是以上第1个句子是正确的，第2个句子是错误的，这2个句子，我和胡德忠老师观点是 一致的。原因是listen to为具有特定语义的固定短语动词，作定语从句谓语动词的时候，如果后面带有宾语，(即如果关系代词在定语从句作谓语动词listen to的宾语)介词to不可以提前句首(写成to which)，介词to只能放在listen的后面。(与及物还是不及物没有任何关系。)

备注：带有介词的不及物动词可以按照及物动词进行理解，后面直接跟宾语。

像"devote to /pay attention to /borrow from/lend to/live in/speak to/talk with 等这样短语动词，在定语从句中，如果后面接宾语，介词都可以提前到句首，然后加冠词代词which。当然也可以不提前句首。

The house in which Tom lives now was bought by his father five years ago .

=The house (which) Tom lives in now was bought by his father five years ago

Tom is the boy from whom Mary borrowed three books five days ago.

=Tom is the boy (whom) Mary borrow three books from five years ago.

The man to whom Tom is speaking now is his English teacher.

=The man (whom) Tom is speaking to now is his English teacher.