Look!David is busy------the guitar.A.play B.plays c.playing D.to play

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Look!David is busy------the guitar.A.play B.plays c.playing D.to play
Look!David is busy------the guitar.A.play B.plays c.playing D.to play

Look!David is busy------the guitar.A.play B.plays c.playing D.to play
C、 be busy doing sth 很高兴能帮到你.

C.因为Look表示正在发生,所以是现在进行时,故选C。

c,形容词后动词一般都是ing形式