用括号内所给词的正确形式填空。

1. Tom is _____ (determine) to finish his homework on time.

2. After careful _____ (consider) he agreed to go there with us.

3. My _____ (consider) opinion is to response to the provocations in a positive way.

4. Deaf people often use sign language as a means of _____ (communicate).

5. Flying across the Atlantic for the first time is a great _____ (achieve).

6. There are many political and social _____ (organize) in this country.

7. He has been taken into hospital for _____ (observe).

8. His _____ (behave) toward me shows that he respects me.