270. The main task of the government is to reduce the level of inflation (通货膨胀). The word "task" means ______.
_____ cold weather, the workers are still working at the working site.
--- Can you lend me the book Gone with the Wind? --- Sorry, I returned it to the library just now. Maybe it is still ____.
---Allen, are you coming with us? ---I’d love to, but something unexpected ____.
_____ with out girls, she is more active in class.
What kind of first aid should you perform in this situation ____ your nose is bleeding ?