【反义疑问句】They believe that there are UFOs.是do they还是aren't there
问题描述:
【反义疑问句】They believe that there are UFOs.是do they还是aren't there
说明理由
答
do_not_they
【反义疑问句】They believe that there are UFOs.是do they还是aren't there
说明理由
do_not_they