“I bought this shirt for 35 Yuan yesterday.” “It’s on sale today for only 29.You should have waited.” “Oh,really?But how ______ I know?A.would B.can C.did D.do

问题描述:

“I bought this shirt for 35 Yuan yesterday.” “It’s on sale today for only 29.You should have waited.” “Oh,really?But how ______ I know?
A.would B.can C.did D.do

C ,意即:哦,是真的吗?但是我那时怎么知道呢?是说过去的事情,用过去式,简单陈述,说她买那件衬衫的时候不知道今天该衬衫就会降价销售。

选a,意思是指当时句中的I在买下这件衬衣的这个过去时间里没有料到它会在未来减价。用的是过去将来时。

C 是过去式.使用过去式的时候,那个action必须发生在过去并且已经结束:"How did I know?"="我怎么知道的?"说明那个Subject已经知道了.A是条件式.条件是通常是一种懊悔/感叹,意思就是没有发生,因为一些条件不具...

C