Once the payment has been made, the goods should (deliver) ______ in one or two days.

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问题 Once the payment has been made, the goods should (deliver) ______ in one or two days.

选项

答案be delivered

解析 本题考查情态动词后的动词形式和语态。空格前的should是情态动词,其后的动词应保持原形,另外,该句主语与所提供的动词deliver应构成被动关系,两个因素结合可确定空格应为deliver的被动语态的原形be delivered。
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