When______whoistheirbestfriends,t

发布时间:2020-07-11 16:03:15

When ______ who is their best friends, the boys usually hesitate before responding.













A.asking












B.asked











C.ask











D.to ask

网友回答

B解析考查非谓语动词。逻辑主语为the boys,与ask之间为被动关系,故用过去分词作状语。句意:当问到谁是他们最好的朋友,男孩们回答之前通常犹豫。
以上问题属网友观点,不代表本站立场,仅供参考!