I saw the boy out a moment ago.A. runB. runsC. how to runD. running

发布时间:2020-08-17 14:13:57

 I saw the boy      out a moment ago.
A. run
B. runs
C. how to run
D. running

网友回答

(答案→)A. run
B. runs
C. how to run
D. running
解析: see sb. do表示看见动作的全过程,表示动作已经结束。
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