________ of her happy childhood by the song, Grandma sang along with it in a soft voice. 

He told us that was no pleasure       computer game.

His first book       next month is based on a true story.                       

A sheep_______on this kind of special grass usually grows much faster than_______on ordinary (普通的).

_______ from the top of the hill, the city is of round shape with a flowing river through it.