1.He is much more stronger/weaker than you two/ you four.
He is much more stronger/weaker than both of you/ all of you four.
2.He is more stronger/weaker than what you think.
He is more stronger/weaker than what you can imagine.
3.He is much more stronger/weaker than he was 3 years ago.
4.How long time later shall I come back for a check?- 3 days later.
5.Have a good rest after you arrive your home.Do not make yourself too tired.
6.Which year is this photo taken by you?(按句子翻译的,别扭.要我我就说：When did you take this photo?- 你什么时候拍的这张照片?）
3 years ago./ I took this photo in 2011.