10． We have some main subjects,_____ (包括)Chinese，math and English．

9． It is very_____ (有意义的)for me to join the Tree-planting Club．

8． He is____ (考虑)learning a foreign language．

7． The tourists had no_____(选择)but to wait for the next train．

6． Lily felt sad because her bird was_____(死了)．

5． The light bulb is an i_____ which is very useful for us．

4． -Isn't it s_____ to be very cold in Harbin? 　-Yes, it is．

3． One of the best-known c_____ in the world is Notre Dame Cathedral．