During a _______ lockdown（封鎖），many people gave up their free time to work as a volunteer.How great!（　?。?/h1>

A．thirty-day	B．thirty days
C．thirty day's	D．thirty days'

【答案】A

【解答】

【點評】

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發(fā)布：2024/11/13 9:30:3組卷：14引用：1難度：0.5

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During a _______ lockdown（封鎖），many people gave up their free time to work as a volunteer.How great!（ ?。?/h1>