She looked at the professor and wondered where she_______ him.
A．sawB．has seenC．seesD．had seen
D

試題分析：句意：她看這位教授并且想知道她曾經(jīng)在哪見過他。分析曾經(jīng)在哪里見過，體現(xiàn)為現(xiàn)在完成時，故選 D
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