完成句子。
1. ______ English, he has to study a second foreign language.
除英语外，他还要学第二外语。
2. How did the West Lake ______ many years ago?
很多年前西湖是怎样形成的的?
3. Some plants very ______ the light; they prefer the shade.
有些植物对阳光非常敏感，它们喜阴。
4. Who is the man ______ our teacher is shaking hands ?
和我们老师握手的那个人是谁?
5. There are many people present at the meeting, two thirds of whom ______ (属于) the same school.