Can you tell me ________ at that time

Finally they arrived at a place ________sold cigarettes and other small articles.

__ know things about each other that we shouldnot know, have no right _____, and have a right, actually, not to know.

-Can those___ at the back of the classroom hear me?-No problem [ ]

“If anybody ________,please put down ________ name,”said the teacher to the monitor.