试题:
Oh,I'm not feeling well in the stomach.I ________ so much fried chicken just now.
A.shouldn't eatB.mustn't have eaten
C.shouldn't have eatenD.mustn't eaten

答案:

我来补答
C

just now是表示过去的时间状语。情态动词在表示过去发生的事时,必须用“情态动词+have+过去分词的形式”。所以只能在选项B或C中确定答案。mustn't have eaten是一个错误选项,因为“mustn't+动词”表示“禁止”,不表示判断或推测。
 
 
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这些题目你会做吗?