1.Although his grandfather is old he won't_____.

1.Although his grandfather is old he won't_____.
A.work B.goes to work C.tired D.retire
2.----Have you cleaned your classroom______?
----Yes,I have cleaned it _______.
A.already,yet B.yet,yet C.already,already D.yet,already
3.Song Zuying is a famous singer.She is a national a_____.
4.2010 Shanghai World EXPO has been h____ in Shanghai.
5.Bill Gates is the r______ man in the world sp far.
6.My grangpa r_____many years ago .Now he stays at home doing nothing.
7.I like to t_____to interesting places and see new things.