She saw nobody swimming in the river,反义疑问句有人说有nobody 所以用did she?但我觉得 反义疑问的是saw这个行为动词啊.她看见：没有人在河里游泳,难道她没有看见吗?我觉得用didn't she

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• She saw nobody swimming in the river,反义疑问句有人说有nobody 所以用did she?但我觉得 反义疑问的是saw这个行为动词啊.她看见：没有人在河里游泳,难道她没有看见吗?我觉得用didn't she
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