You should not put the glassthetable. It may fall down and break!

How dirty the floor is! You should have someone _____ it at least twice a day.

Boys and girls, I have _________ to tellyou.

The Iranian government is accused of ______ some terror organizations in the Middle East by the United States, which can’t not produce firm evidence to prove it. [ ]

填入下面横线上的两句话，与上下文衔接最恰当的一项是( )泰山的南天门又叫三天门，创建于元代，至今已有六百余年。________，为“门辟九霄仰步三天胜迹，阶崇万级俯临千嶂奇观”。