摘要：9．We laugh at jokes.but seldom about how they work．w w*w.k s*5 A．we think B．think we C．we do think D．do we think [解析]:D.考查倒装.seldom为否定副词放句首.用部分倒装.故选D.句意为“我们因笑话而笑.但很少去思考笑话如何让我们笑.

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