Employment costs rose 2.8 percent in the 12 months that ended in September, slightly less than they did in the year that ended in the previous quarter.
Employment costs rose 2.8 percent in the 12 months that ended in September, slightly less than they did in the year that ended in the previous quarter. (A) less than they did (B) less than it did (C) less than they were (D) lower than (E) lower than they were 答案A
答案A employment cost in the year that ended in the previous quarter employment cost rose in the year that ended in the previous quarter percent in the year that ended in the previous quarter 逻辑上都可以吧,不补出怎么知道是比较那个 但不是说介词比较诸位不用补出吗?到底用不用补?