题目内容：

 

1.Things are going on well, and you should be o_________ about the life in college.

2.The project failed due to l__________ of money.

3.We can live without clothes, but food and drink are e_________.

4.David and I are c__________. We work in the same company.

5.If you don’t c__________ more on your work, you will lose the job.

6.Tom’s mother died two days p_______ to his arrival.

7.The police perform a v________ role in our society.

8.The driver of the car received serious i_________ to the legs and arms.