1.   The function of research and development was very active, constantly upgrading product quality and in recent years moving into related products.

2.   The government made strenuous efforts to upgrade the quality of the teaching profession.

3.   Also, by then we will have upgraded the quality of public transportation out of pure necessity.

4.   At the same time, Imax wants to upgrade the quality of the plots and stories in its movies.

5.   A commission headed by Vice President Al Gore urged airlines to pay their security personnel better wages to upgrade the quality of performance.

6.   But in time Kim hopes to upgrade the quality of his cars, just as he has his other products, such as electronics and ships.

7.   Despite what its critics say, busing was responsible for an enormous amount of progress in upgrading the quality of public school students of all ethnic backgrounds.

8.   Fact is, while some small Texas wineries continue to produce amateurish efforts, others have made noticeable strides in upgrading the quality of their wines.

9.   I am under a very large-scale effort to upgrade the quality of management.

10.   It has upgraded food quality while keeping high service standards, analysts said.