Everyone has periods in their lives __________ everything seems very hard.

A．when

B．where

C．which

D．that

根据我国民事诉讼法的规定，人民检察院对民事案件进行抗诉，( )。

A．应当在两年内提出

B．应当提交抗诉书

C．应当以检察长的名义提出

D．应当由同级人民检察院提出