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20．_____ that I didn't know what to say to comfort her．（　�。�
A．So sad she lookedB．So sad did she look
C．So sadly she lookedD．So sadly did she look

分析 她看起來如此傷心以至于我不知該說什么去安慰她．

解答 答案：B
look 表"看起來"后面加形容詞，故排除CD，另外so+adj 放句首句子半倒裝，則排除A．故選B．

點評 本題考查倒裝句．在讀懂句意的基礎上分析句子結構，利用排除法選出正確答案．

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