据句意和首字母提示补全单词。

l. There is n_____ much wrong with you .Just  have a rest.

2. Lei F eng always helped others in his l_____. We should learn from him.

3.—Who can s_____ the math problem? 

  —I think everybody can.

4. The region p_____ over 50% of the country's wheat.

5.ln his s_____   time ,he loves playing the violin  and listening to music.

6. Yuan Long ping is now working on d_____ super hybrid rice.