It’s said that he will __________his uncle’s business when he is mature enough to deal with the public relations.[ ]

I phoned you yesterday morning. A girl answered, but I didn’t recognize the voice.— Oh, it __________ my younger sister. She was in my room at that moment.

What is the ______ news?

________they visited the Science Museum，they showed great interest in everything they saw.[ ]

Many experts agree that once thesetreasures are _______ to the air, great harm will be done to them. So theythink it better not to unearth the treasures.