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英语单项选择-Did you wait for Dad to come back for dinner yesterda

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英语单项选择
-Did you wait for Dad to come back for dinner yesterday?-No.I____so as he told me he would attend an important dinner party.A.don't need to do B.needn't do C.needn't have done D.didn't need to do
英语单项选择-Did you wait for Dad to come back for dinner yesterda
B
你昨晚等你爸爸回来吃晚饭了吗?----没有,我不需要等他因为他告诉我他要参加一个很重要的晚宴.
要用过去时态,但B选项的need是情态动词,和should的用法是一样的.而如果用didn't need也可以,不过,此时应为didn't need to do it .这是的do不是在情态动词后面,是固定搭配need to do sth.所以后面要加it