18．--I came to your home yesterday afternoon.but nobody was in．--Oh.we some shopping in the supermarket．A．have done B．did C．were doing D．a(chǎn)re doing 【查看更多】

 

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--I came to your home yesterday afternoon，but nobody was in．

--Oh，we                some shopping in the supermarket．

A．have done            B．did                         C．were doing             D．a(chǎn)re doing

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