When he turned professional at the age of 11，Mike________to become a world champion by his coach and parents.

First aid is a temporary form of help       to someone who suddenly falls ill or gets       ——before a doctor can be found.

 Don’t get the plastic tube close to the fire; it ______ easily.

He _________ to go through the hard times and finally became a famous artist.

--- A high-tech exhibition          in the National Museum.--- Really? What about visiting it now?           .