The pupil sat there, what to do. [ ] A．does knowingB．didn' t knowing C．not known
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The pupil sat there, ________ what to do.
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A．does knowingB．didn' t knowingC．not knownD．not knowing
试题答案
答案：D
提示：现在分词的否定式是在分词前加not，此处表示know和sit同时发生. |