( )是共产主义社会实现的根本条件和基础。
A. 生产资料完全公有化
B. 高度文明与和谐的社会
C. 社会生产力高度发展,产品极大丰富
D. 人们的精神境界普遍提高
社会阶级的消灭是以( )为前提的。
A. 生产资料公有化
B. 社会化大生产
C. 民主政治发达
D. 生产高度发展
1.____ some students, the teacher entered the hall.
A. Following
B. Followed
C. Being followed
D. Having followed
____, and he had to go back home.
A. Day having broken
B. Night had fallen
C. The day had broken
D. Night fallen