I don’t like watching documentaries because they are boring. — _______ .

I want to know _________.

What does the sign over there read一No person ______ smoke or carry a lighted cigarette，cigar or pipe in this area．

By the time he realizes he _____ a mistake, it’ ll be too late for him to change his mind. [ ]

______ all his fortune gone, the playboy could do little to preserve the family fame.