Who is the man over there?Is it Mr Li?No,it___be him.Mr Li is much taller.
问题描述：
Who is the man over there?Is it Mr Li?No,it___be him.Mr Li is much taller.
这题考点什么
答
短语can't be和must be
can't be表示绝对的否定,肯定不是
must be表示肯定的猜测,肯定是,其否定形式不是mustn't be,而是can't be