根据句意及首字母提示在横线处填上恰当的单词，使句子意思完整，语法正确。

1.  China has become a m________of the WTO.  It will play a more important role in the world.    

2.  If you want to drive a car, first you must get a driving l________.    

3.  We are not a_______to speak Ioudly when we are in the school library.    

4.  At p________,he is not here.  He has gone abroad on business.    

5．Our parents e_______many real hardships（艰苦生活）and they think our life now is much better than before.    

6.  Many young people v_______to teach the poor children in the local area.    

7.  I can't c________on my work when I am hungry.    

8.  How are you getting along with your s________in your school?    

9.  If you have an o________to go abroad, take it please.    

10. Can you d________a house for me? I think it must be nice.