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看图，选择正确答案
David is _____ water.
A. drinking B. eating C. washing
看图，判断下列句子正误，正确的填
David is eating in the kitchen.
David is good at _______.
A. maths B. music C. English
从所给词的正确形式填空
David is a _____(work).
David is ______.
A. cleaning B. eating C. blowing
