他执政后 为人民做了很多工作。(come to power) 4. After he came to power he did a lot of work for the peo

问题补充：

他执政后，为人民做了很多工作。(come to power)

4. After he came to power, he did a lot of work for the people.

答案：

(答案→)4. After he came to power, he did a lot of work for the people.

解析：注意时态。