阅读下面短文，从方框中选择合适的词填空。 Fill in the blanks with given words.
hour   before  mouth   see  artist   once   popular   draw   for   but

The dog is a real artist

Sam is a 9-year-old dog. He has a hobby：painting . The hobby not only makes him famous,【小题1】also makes him rich.

Sam has【小题2】 22 paintings . All of  them are abstract （抽象派的）. When he paints, he holds his brush （画笔） in his【小题3】 . He likes to start with darker colors【小题4】 moving on to lighter ones.
Sam’s paintings are【小题5】 in the US. Some sell for as much as $1,700. A woman even bought one as a birthday gift 【小题6】 her dog.
“He loves painting and would paint for 【小题7】 If I left him to it,” said Sam’s owner, Mary.
Sam was【小题8】 a rescue （搜救） dog. One day, Mary wanted to teach him something.
“I【小题9】 Dolphins painting and elephants painting, so I thought, why not a dog?” said Mary.
She is right. Now Sam is one of the world’s greatest animal【小题10】. People call him “Da Vinci in the dog world.”