(2014·长沙名校模考)________he referred to in his article was often discussed by many people in the past.

— Hi, Terry, can I use your computer for a while this afternoon?— Sorry. _____. [ ]

Are these your grandparents—_________.

____ it be that is knocking at the door—It ______ be Father, but I’m not sure

It was not _____ she took off her dark glasses _____ I realized she was a famous film star.[ ]