语法选择（共10小题；每小题1分，满分10分） 阅读下面短文，按照句子结构的语法性和上下文连贯的要求，从1~20各题所给的A、B、C和D项中选出最佳选项，并在答题卡上将该项涂黑。
Once, a king loved music so much that he searched the world for the best instrument. One day, a magic man   the king a harp(竖琴).
The king took it to the palace, but        he played it, the harp sounded terrible. Many       people tried it. They agreed that the harp was       and the king had been fooled. The harp was thrown out as rubbish.
A poor little girl      found the harp, and even though she didn’t know how      it, she decided to have a try. She played and played, the whole day through, for months and years. The music she produced was never perfect,       each time it sounded a little better.
Then one day, suddenly, the harp started to play the most beautiful music. It was in fact        magic harp, and could only be played well by someone who would put in the necessary effort.
The king heard the music from his window, and called the girl to the palace. When the king saw that she was playing his old harp, he was filled        joy. At that moment he made the girl his own private         , giving her and her family many riches.

A．offer B．offers C．offered D．has offered

A．when B．before C．if D．because

A．another B．other C．others D．the other

A．used B．using C．useless D．uselessness

A．late B．lately C．latest D．later

A．played B．to play C．playing D．to playing

A．so B．and C．or D．but

A．a B．an C．the D．/

A．in B．of C．by D．with

A．music B．musical C．musician D．musically