I’m very sorry I’m late. I ______ and told you I was coming.

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问题 I’m very sorry I’m late. I ______ and told you I was coming.

选项 A、ought to phone you
B、must phone you
C、ought to have phoned you
D、must have phoned you

答案C

解析 情态动词+have+过去分词。ought to have done sth.和should have done sth.表示本应该做某事,而事实上并没有做。其否定形式表示“不该做某事而做了”。ought to在语气上比should要强。
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