人民代表大会制度以人民当家作主为宗旨,其优越性具体表现在①它动员了全体人民投身于社会主义建设②它保证了每一位公民直接管理国家事务③它保证了国家机关协调高效运转④它实行了民主集中制的工作原则
There isn’twith my TV set.
Therea class meeting next week.
Do you know the man ______ is cooking now?
Have you ever gone ?
Mary often studies English by _______ with a group.