Aftertheeveningparty,littleTomcoul

发布时间：2020-07-27 15:17:31

After the evening party, little Tom couldn't find his parents. He didn't know what ________, so he sat on the floor, crying.A.doB.to doC.doingD.should do

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B解析what to do疑问代词+不定式作宾语．
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