Whereismother?Sheisinthekitche

---- Where is mother?
---- She is in the kitchen. She ______ the housework all morning.

A．was doing

B．has done

C．has been doing

D．is doing

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A．will make

B．have made

C．made

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A．would get

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A．set up

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A．whose

B．which

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A．that

B．of which

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