--Is Bob still performing ? --I’m afraid not . He is said       the stage already as he has become an official.

.The teaching building is _________ by many trees, some ______ over 30 metres.

My grandma still treats me like a child. She can’t imagine        grown up.

. To the surprise of many people, in ten years the city’s population ____ by 12%.

Some people would rather ride bikes as bike ridding has_____  of the trouble of taking buses.