I've never seen anyone run so fast...I've never seen anyone run so fast, _____ David go.A. just watch B. just to watch C. just watching D. just having watchedI've never seen anyone run so fast----_____ David go.A. just watch B. just to wa

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I've never seen anyone run so fast...I've never seen anyone run so fast, _____ David go.A. just watch    B. just to watch    C. just watching    D. just having watchedI've never seen anyone run so fast----_____ David go.A. just watch    B. just to wa

I've never seen anyone run so fast...I've never seen anyone run so fast, _____ David go.A. just watch B. just to watch C. just watching D. just having watchedI've never seen anyone run so fast----_____ David go.A. just watch B. just to wa
I've never seen anyone run so fast...
I've never seen anyone run so fast, _____ David go.
A. just watch B. just to watch C. just watching D. just having watched
I've never seen anyone run so fast----_____ David go.
A. just watch B. just to watch C. just watching D. just having watched
请问这两道题的答案分别是什么?有什么区别?

I've never seen anyone run so fast...I've never seen anyone run so fast, _____ David go.A. just watch B. just to watch C. just watching D. just having watchedI've never seen anyone run so fast----_____ David go.A. just watch B. just to wa
第一题接的不是完整的句子所以不可以接逻辑谓语即接非谓语
第二句中有破折号所以加的是逻辑谓语
这就是两题的区别

第一句指的是“只是David跑在前面”,选D
第二句指的是“不去管别人的,只看David跑。”

D,C我也不确定,你参考下