1 . Our car had a b__________ on the road, so we had to go home on foot.

2 . We were ________ (处于崩溃的边缘) when the rescue team finally arrived. (根据汉语意思完成句子)

3 . The ___________(故障)of the computer system is caused by the new virus.

4 . They often seem depressed(压抑的)and close to emotional b________________.(根据首字母单词拼写)

5 . A sudden rise in oil prices could lead to a ____________ (崩溃、破裂)of economy(经济). （根据汉语提示单词拼写）

6 . All of this can lead to a b______ in your relationship. （根据首字母单词拼写）

7 . If you continue working like that， your body will________  _________（垮下来）。(根据汉语提示完成句子)

8 . 选词填空 (outcome/output/breakthrough/outbreak/breakdown/outstanding)
1. The cause of AIDS is made clear, which will help to make a great _____ in the treatment of the deadly disease.
2. Blamed for the _____ of the school computer network, Alice was in low spirits.
3. Having in yourself will help you make better choices because you can see what the best _____ would be for your well-being.
4. The basketball coach, as well as his team, was interviewed shortly after the match for their _____ performance.
5. Manufacturing _____ has increased by 30%.
6. The research project was put off because of the _____ of the war.