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Today is Thursday,and Tom lost his bike last Sunday.We may s

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Today is Thursday,and Tom lost his bike last Sunday.We may say “_____”.A.Tom has lost his bike four days ago B.Tom has lost his bike for four days C.Tom lost his bike for four daysD.It’s four days since Tom lost his bike
A有语法错误,four years ago应该要用一般过去式,不能用在现在完成时;C有语法错误,for four days应该要用现在完成时,不能用在一般过去时;而B我不是很清楚,应该是lost his bike这个动作是瞬间动作,不能用于现在完成时,这句应该可以改为Tom's bike has been lost for four days.D,since的主句应该用现在完成时 ,-'s的祥写是has