问题补充:
In order to reduce the increasing prices of vegetables , the toll(过路费)if a truck carrying them passes through a toll station .
A. cancels
B. is cancelled
C. was cancelled
D. had been cancelled
答案:
A. cancels
(答案→)B. is cancelled
C. was cancelled
D. had been cancelled
解析:考察时态及语态。句意:为了降低蔬菜正在升高的价格,当通过收费站时运菜的卡车的过路费被取消了。描述的是现在的一种客观状态,过路费是动作的对象,故用被动语态,一般现在时态,选B。