1 . 根据句意，选择短语并以其适当形式填空。

shirk one’s duty, blow away, at war, break through, light up, serve as, a sum of, track down

1. On September 5, at the end of the festival last year, a huge display of fireworks ________ the sky around the whole area.
2. Strong winds can also ________ the valuable soil that lies on the top of the fields.
3. Our nation is ________ against a far-reaching network of violence and hate.
4. In some countries, smartphones and other mobile devices ________ replacements for the traditional desktop computer.
5. They presented ________ money to the school where they studied years ago.
6. The sun ________ at around lunchtime after several cloudy days.