摘要：2．系表结构一般只用于一般现在时.一般过去时,而被动语态除了用于这两种时态外.还可以用于将来时.进行时和完成时.例如: The shop is (was)opened.商店正在营业. The work is being done.这工作正在做. Yesterday when I got there, the ship was being loaded.昨天我到达那里时.船正在装货. Their work had been finished by the end of last month.他们的工作上月底已经完成. You'll be shown around you room.有人会带你去看你的房门的. He said the library would soon be built.他说图书馆很快就要修起来.

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