It is said that Galileo invented telescope. 2.--- As you know, ____ books are expensive. --- _____ books cost me more than sixty yuan. 3. We often watch TV , but we seldom listen to radio. 4. The huntsman entered the forest, gun in hand. 5. He was medical student before he turned writer. 6. The robber was sent to prison last week. 7. _____ breakfast I ordered still hasn't ar r ived. 8. _____ Hawaiian Islands are group of is-lands in Pacific Ocean belonging to _____ United States of America. 9.____ new moon is hanging high in ____ sky. 10. Turn to ____ left and you will find ____ post office. 11. France is ______ European country. 12. These pencils are all of ____ length.