1 tender为较为正式的用词，作为及物动词，意为give, offer, present.

通常词典给出的用法为tender sth to sb. 但既然词典用give 和 offer来解释tender，而这二个词都有双宾语用法，所以，tender可以有双宾语用法为大概率，只不过单宾语+to sb这种单宾语用法更为常用罢了。以下为COCA语料库tender用作双宾语动词的部分例句：

Mr. Brown will remain in the city several days, and a reception will be tendered him at Mr. Watkins's on Wednesday evening. 被动语态+保留间接宾语

So, the Mets chose to roll the dice one more time with Harvey and tendered him a $5.63 million contract for this year. 主动语态双宾语

But you will not expect me to discuss its provisions at length, or in any detail, at this time. It will, however, be my duty at some future day to make to you and through you to the great party you represent a more formal acceptance of the nomination tendered me. 过去分词作定语，后接保留间接宾语

Dr. Sandford proposed Melbourne; and urged that in the first place we should avail ourselves of the hospitalities of his sister's house in that neighbourhood, most generously tendered us. 过去分词作定语，后接保留间接宾语。

所以你的句子中，tender为被动语态，后接me为保留间接宾语。me改为to me则为单宾语用法，就是词典的用法了。

2 so...as...不仅仅用于否定句，也用于疑问句。本句if=whether, 引导间接疑问句。

Would I ever be so old as the man I sat with? 我有朝一日也会像和我坐在一起的这个人那么老吗？

Is your former girlfriend so beautiful as me?

Do you have so much money as he does?

3 ever= at one time. 可以不翻译。

明明是比较分句，怎么扯到定语从句上去了。