Mr.Brown is supposed to have left for Ltaly last month这里为什么用 have 不用has?

What is Mr Brown? Mr.Brown is supposed to have left for Ltaly last month这里为什么用 have 不用has? Who Is Mr Brown 歌词 Mr.Brown is supposed _for Italy last week.A,to have left B,to leave C,to leaving D,to have been left Mr.Brown is supposed _for Italy last week.A,to have left B,to leave C,toleaving D,to have been left Mr.Brown is my teacher.一般疑问句,对Mr.Brown提问Mr.Brown is my teacher.一般疑问句,对Mr.Brown提问,对Mr.teacher提问 Is( )your father Mr Brown?No,___not. Mr brown is happy.改为一般疑问句 Who is behind Mr Brown?是什么意思? Mr.Brown's name is John Brown.So his s___ is Brown. Mr.Brown's name is John Brown.So his s_______is Brown .His f_____name is Joh Mr Brown is my father的同义句提示：I ( )the( ) ( )Mr Brown mr.brown is a teacher.this summer vacation is coing Why?-->Mr.Black,Mr.White,Mr.Brown,Mr.Green,Mr.Blue,Mr.Red,Mr.Yellow,Mr...Mr.Black,Mr.White,Mr.Brown,Mr.Green,Mr.Blue,Mr.Red,Mr.Yellow,Mr.Why?Mr.Orange,Mr.Purple,Mr.Violet,Mr...Is it any kind of colour can make a person's name?Why?Is there any reason? mr brown is a doctor对a doctor 提问 mary says to Mr.brown is a good teacher MR Green ,this is MRS Mary Brown这句话对吗 Mr Brown is a policeman.（用what回答）