Customers are asked to make sure that they ______ the right change before leaving the shop.Customers are asked to make sure that they ______ the right change before leaving the shop.A.will give B.have been given C.have given D.will be given 为什么?顺便再翻译一下.
问题描述：
Customers are asked to make sure that they ______ the right change before leaving the shop.
Customers are asked to make sure that they ______ the right change before leaving the shop.
A.will give B.have been given C.have given D.will be given 为什么?顺便再翻译一下.
答
意思是：客户被要求在离店前确认他们找零准确无误。
因为找零是被动的，而且是已经完成，所以选B
答
have been done 是现在完成时.找零发生在离开商店的前面.
顾客被要求在他们确定正确找零后,离开商店.