根据句子意思填入恰当。

1. All the important discoveries are based on scientific ________ (观察) and careful research.

2. The suggestion you put forward yesterday is under ________ (考虑).

3. He has made a s________ of the main points in the Secretary General's speech.

4. Sophia was not usually the kind of person to say ________ (令人不安的) things.

5. I was very f________ to pass the exam,while unluckily, Jim failed.

6. They were dancing and singing in the car, much to the ________ (好笑) of passers-by.

7. This is the competitor ________ (代表) Australia.

8. Some teenagers smoke out of ________ (好奇).

9. Please open the window to allow the air to ________. (流通)

10. The child was ________ (拥抱) her mother.