–What did you do last Sunday?–I ________ to see the movie Tai Jiong with my friend. It was really funny.
A:go
B:had gone
C:have gone
D:went
中国是一个统一的多民族国家,在少数民族聚居地区实行的一项基本国策和基本的政治制度是( )
下列有关实验的描述,正确的是( )