-- Does a UFO really exist? -- No one cann be sure. Maybe it ___ a mystery forever.A. is remained B. will remainC. has remained D. remains

-- Does a UFO really exist? -- No one cann be sure. Maybe it ___ a mystery forever.A. is remained B. will remainC. has remained D. remains 关于DOES a college really worth it 对话. does you charater really an UFO还是 a UFO A:A UFO landed while i was sleeping last night. B:Were you scared? A:Not really. A:A UFO landed while i was sleeping last night. B:Were you scared? A:Not really. I'm i___ in the UFO.I often read books about the UFO and think a___ it when I'm free.I often imagine what I would do if I s____ the UFO.I'm really a UFO fan.Friends often ask me q___ about the UFO:What would you do if the UFO attacked you?What would what does love really mean? Does he really love me? does it ever really end? Does it really god work? Does Tongkat Ali Really Work? ---He really plays well,doesn't he?回答应选问题补充中哪一个A.So it does.BIt so does.C.Sure he does .D.He sure does. 为什么是A UFO而不是an UFO? people believe that UFO does exist.（用it 开头改写句子）,_________that UFO does it . I ____ see him yesterday.A.really B.do C.did D.does Does he really drive_____.A as fastB that fastC with fast fastnessD fast like that 英语翻译He is really somebody -- My uncle has 1000 men under him.-- He is really somebody.What does he do?-- A maintenance man in a cemetery.