2 . 根据语境，选择下框中的单词替换句中划线部分的词或词块，使之意思一致。

A. substantial       B. attain        C. faults        D. fundamental     E. expense        F.   adapting        G. stuffed

1. Many college graduates find they have great difficulty getting used to the dramatic changes in job market.
2. A basic change in the organization of health service was required.
3. The lesson learned at the cost of blood helped to sober us.
4. Never will you achieve success unless you are fully devoted to your work.
5. The government has invested a large amount of money and time in public transport.
6. Warehouses at the frontier between the two countries are filled with sacks of rice and flour.
7. Some parents are so proud of their children that they tend to overlook their shortcomings.

4 . 生活只给我们时间和空间，如何去填充它由我们决定。
Life just gives us time and space，________________.