1 . 他简单地看了看自己的笔记。(汉译英)

2 . I am writing to express my interest in your advertised position as a secretary. Here I would like to introduce myself ___________ (brief). (所给词的适当形式填空)

4 . Sonia explained ___________ how she would solve the problem. In ___________, she set an example to others preparing to make a speech.(brief)