See who's there!Can it be Mary?

情态动词的.See who’s there!______ I t be Mary?A.May B.Must C.Can There's someone outside .Who ---it be A:must B:can C:shall D there is someone in the room,who can it be?请问这句子的someone能换成s I can see it.There will be lamps.Will there be stairs?No,the ''Let's run to that all tree.Let's see who can get there fir 英语 .There's someone at the door.Can you go and see who _____ I see,can see.it's close, who can it be?:"can"用法 who's the man over there is it mr black ---it __ be him .he' Who's the man over there?It ___ be him.He's much taller. Who is the man over there?It can't be Tom.的反义疑问句是什么? 30.----Who is the man over there.It can’t be Li Lei,_______.