1. The average income of the staff has been ______________(与去年相比增加了50%). 2. The size of the newly broadened square __________________(是以前的四倍大). 3. After the new technique was introduced,the factory_______________(2000年能生产的卡车是往年的两倍).
答案: 1.increased by 50 percent compared with last year 2.is four times that of the previous one 3.produced twice as many trucks in 2000 as the year before