根据语境,补全单词。
1. The room is so dirty. Let's give it a t_____ cleaning.
2. A number of nations have already been in armed c_____ over water, and
reduced rainfall in the west of the US has resulted in huge forest fires.
3. A c_____ needle always points north.
4. The flight's d_____ time was 10am.
5. The sea turtle is an e______ species.
6. The brain c_____ of grey and white matter.
7. In the article, his privacy was e_____ to the public.
8. I haven't contacted Tom for ages. It is b_____ my dreams to have received
a letter from him.