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问题: 高二英语必修5-5

-When can I come for the photos?I need them tomorrow afternoon.
-They ___be ready by 12:00.
A.should B.can
为什么选A?

解答:

When can I come for the photos?I need them tomorrow afternoon.
-They ___be ready by 12:00.
A.should B.can

我什么时可以过去取照片?明天下午我需要用它们.

他们在12点前应该准备好了才对.

这里选A,是因为should在这里用作情态动词"应该".