题目内容
2.Customers are asked to make sure that they ______ the right change before leaving the shop.( )A. | will give | B. | have given | C. | have been given | D. | will be given |
分析 顾客应该在他们确定正确找零后再离开商店.
解答 答案:C.
结合语境可知,因为找零是被动的,而且是已经完成,所以需要使用现在完成时的被动结构;故选C.
点评 对于时态的运用要认真分析主从句之间的联系,并结合句中逻辑关系来判断相应的时态和语态.
A. | was dated back to | B. | has been dating from | ||
C. | dates back to | D. | had dated from |