Thereisnomachineallowingpeople____

发布时间：2020-07-26 23:02:33

There is no machine allowing people ________ under the water for a long time.A.stayB.to stayC.stayingD.to staying

网友回答

B解析allow sb to do sth允许某人做某事。
以上问题属网友观点，不代表本站立场，仅供参考！