The Internet is a wonderful discovery,________of great significance to people’s lives.

Eddie is eight years old, but we have seven candles only, we need __________ candle.[ ]

Be quiet, the head teacher Mr. Gu is coming.— Don’t worry. It _____ be him. Mr. Gu is much fatter.

The man in a black suit _______ be our youth worker. — I’m sure it _____ be him. I saw him in the laboratory building some minutes ago.

Do you know what the meeting is about？ —Yes, of course. It will _____some important rules we need to know about our school.