如右图所示程序框图表示:输入的实数x经过循环结构的一系列运算后,输出满足条件“x>2012?”的第一个结果。但是程序不是对于所有的实数都适用,为了保证程序能够执行成功,输入实数x时需要提示( )
-____you ever ____with a group? -Yes, I have .
---_______ he _______ from Beijing? ---No, he _______.
------ __ does your father go to see your grandmother ? ------Once a month .
study in Lufu Middle School?
I always tell my students _________ on the road because it’s really dangerous.