() 15. Many people are still in habit of writing silly things in public pal- aces.

   A. the;the   B. /;/

   C. the ;/   D. / ； the

() 12. After school we usually play basketball for half an hour on playground.

   A. the;the   B. /;/   C. /;the   D. the;/

() 11. She learned to play piano all by herself.

   A. a   B. an   C. the   D. /

() 10. This novel can make you laugh and cry at same time.

   A. a   B. an   C. the   D. /

() 9. Justin Bieber is Canadian singer and he has lots of fans.

   A. a   B. an   C. the   D. /

() 8. —Do you know man in blue?

—Yes,he's a professor of university.

   A. the;a   B. a;an   C. the;an   D. /;the

() 7. Look!There is cat in the tree.

   A. a   B. an   C. the   D. /

() 13. Tom seems to be as tall as Dick;in fact,Tom is taller of the two.

   A. a   B. the   C. /   D. more

() 14. Let's go to hospital to see Li Ping who's been in hospital for a week.

   A. /;/   B. / ；the   C. the;/   D. the;the

() 6. As unemployment is very high at the moment,it's very difficult for people to find work.

   A. the;/   B. /;/   C. the;a   D. an;the