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34．--Do you know the Smiths left Shanghai?--I'm not sure．I only remember it was a Sunday．A．if B．when C．how D．why 【查看更多】

 

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--Do you know          the Smiths left Shanghai?

--I'm not sure．I only remember it was a Sunday．

A．if                        B．when                   C．how                             D．why

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