求解单选题?:Mr Smith couldn't open the door because his naughty b
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求解单选题?:Mr Smith couldn't open the door because his naughty boy __ it from the inside,.
为什么填had locked ?couldn't open 不是对现在的推测吗?所以应该选现在完成时啊?为什没选过去完成时?
为什么填had locked ?couldn't open 不是对现在的推测吗?所以应该选现在完成时啊?为什没选过去完成时?
因为锁门的动作发生在开门动作之前,且开门动作发生在过去,因此锁门动作发生在过去的过去,用过去完成时
再问: 开门动作为什么发生在过去?couldn't open 不是对现在的推测吗?现在啊!为什么?
再答: 因为could是can的过去式,在这里could不表推测,表能力,能做某事
再问: 哦,那表能力算什么词性?动词吗?那open算什么词性?
再答: can做谓语时都是情态动词,做名词时表示罐头。open当然是动词。
再问: 开门动作为什么发生在过去?couldn't open 不是对现在的推测吗?现在啊!为什么?
再答: 因为could是can的过去式,在这里could不表推测,表能力,能做某事
再问: 哦,那表能力算什么词性?动词吗?那open算什么词性?
再答: can做谓语时都是情态动词,做名词时表示罐头。open当然是动词。
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