i believe he ____an accident ,otherwise he would have arrive

i believe he ____an accident ,otherwise he would have arrived on time
为什么选must have had could/would/should/must have done 有什么区别,

shenzz110 1年前已收到2个回答举报

rich800 花朵

共回答了19个问题采纳率：89.5% 举报

could have done 本可以干某事但是没有干(表示能力方面) would have done 只是表示意愿 should have done 本应该干某事但是没有干(应不应该的问题) Must have done 一定干了某事本题目后面说 “不然的话他一定会准时到达的”可见说话人确定他遇到了事故

1年前

tcgwyow 幼苗

共回答了102个问题举报

must表示肯定

1年前

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