题目内容
【题目】The boy lay on his back, his teeth ______ and his eyes ______ at the sky.
A．set; looked B．set; looking
C．setting; looked D．setting; looking
【答案】B
【解析】句意：他仰卧着，牙关紧闭，眼睛望着天空。此题较难，首先分析句子间的关系，用逗号隔开，没有连词，且主语也不一样，故判断后一句应该是独立主格结构；teeth与set是被动关系，但set的过去分词与原形一样；eyes与look是主动关系，故应该用现在分词。故选B项。
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