As we all know, parents are concerned _____ their children’s study, because it is concerned ____ their future .
--Karen, can I talk to you for a minute? --Sure, ________?
The chairman will be pleased at ________ scene that everything is in ________ place.
Brian told you that there wasn’t anyone in the room at that time, ___________?
I don’t think he could have done such a stupid thing last night, ___________?
There used to be a church in our school, ___________?