按要求改写句子。

1．火神把普罗米修斯押到高加索山上。

    “被”字句：                                                                                                 

2．他的肝脏被鹫鹰吃光了。   

    “把”字句：                                                                                                 

3．他遭受着痛苦。

     扩句：                                                                                                           

4．人们在无边的黑夜中度过一个又一个长夜。

     缩句：                                                                                                           

身心疾病的发病率在人群中非常高，国内约为（）

A.1／2

B.1／3

C.1／4

D.2／3