以下几种玉石中，透明度为不透明的玉石材料为（）。

A、水晶

B、紫英

C、青金石

D、芙蓉石

词汇运用。

1． He p_____ classical music to pop music when he was young．

2．The yellow river is the second l _____ river of our country．

3．There will be a Chinese painting e _____ in the national museum next week．

4．Our teacher always speaks h _____ of us when we make a great progress．

5．How p _____ it is in the countryside! However, it is too noisy in our city．

6．He hasn't enough _____ (经验) for the job,

7．He is _____ (自信的) to pass the exam．

8．With our my _____ (允许), don't touch my things．

9．Ga Changwei is one of the top _____ (摄影家) in China.

10．I am tired and stressed out．I wait a  _____ (放松的) vacation on a quiet place．