第1个回答 2011-03-06
1. He is always uncertain about what to do when he is at home alone.
2. The level of a country's wealth should be measured according to people's health, happiness and productive material goods.
3. I'm not so familar with the names of chemical products. That's why I often got low marks in chemisty exams.
4. You should provide personal information in detail when applying for a job.
5. The supermarket has brought us great convenience since it opened in 1999.
6. The employee's demand for raising salary was refused by the employer.
7. The professor entered the auditorium, accompanied by several assistant professors.
8. Food is associated with body, that is to say, food supplies body with the needed energy.