I'm hungry ,mum|.--You __.We had lunch only one hour ago.A can't B needn't C shouldn't D couldn't选哪,为什么。D 为什么又不对?

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I'm hungry ,mum|.--You __.We had lunch only one hour ago.A can't B needn't C shouldn't D couldn't选哪,为什么。D 为什么又不对?

I'm hungry ,mum|.--You __.We had lunch only one hour ago.A can't B needn't C shouldn't D couldn't选哪,为什么。D 为什么又不对?
I'm hungry ,mum|.--You __.We had lunch only one hour ago.A can't B needn't C shouldn't D couldn't
选哪,为什么。D 为什么又不对?

I'm hungry ,mum|.--You __.We had lunch only one hour ago.A can't B needn't C shouldn't D couldn't选哪,为什么。D 为什么又不对?
选c.是一般性的否定句,根据句意“妈,我饿了”“不应该啊,我们吃午饭才过一小时.”
should not have done,表示本来不应该的事情,但是却发生了

看时态——一般现在时。couldn't时态不符合。

A 意为不可能

c
虚拟语气