Question

高一英语选择题，急~~I _____ have watered the garden.It began to rain shortly after I finished

I _____ have watered the garden.It began to rain shortly after I finished.
A、mustn't

B、needn't
C、couldn't
D、wouldn't
先翻译后解释

Answer 1

B、needn't

从下文“.It began to rain shortly after I finished”“我淋完水后不久就开始下雨了”可见， 这里指的是“没必要（在过去）浇水

表示"（过去）没必要做某事（而事实上已经做了）" 用【needn't have done sth】

如不明白请追问，如果满意请采纳
手机提问者如果满意，请在客户端右上角评价点“满意”即可， 谢谢！

祝学习进步

追问

Answer 2

I _____ have watered the garden.It began to rain shortly after I finished.
A、mustn't
B、needn't
C、couldn't
D、wouldn't先翻译后解释

选B
根据句意：“在我浇完水之后不久天就下雨了”，可以推测我先前的浇水是【没有必要】，你说是吗？

Answer 3

B.needn't

追问

为什么？那C呢？