Ifoundababy________onitsmother's

发布时间：2020-07-26 19:45:57

I found a baby ________ on its mother's knees, ________ to speak.A.seat; learnB.seated; learnC.seating; learningD.seated; learning

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D解析导解：seat是及物动词，seat sb.或sb. sit；第二空是现在分词作伴随状语．
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