用英语写一段对话，要求至少用五个情态动词，可重复

Question

如题所述

Answer 1

A:Can you see the man over there?It must be our head teacher.
B It can't be him.He has gone abroad.
A who can it be then?
B it may be our English teacher.He often wears a black jacket.
A.yes,it must be him.

Answer 2

There "used to" be a lane there, but we "cannot" find any evidence now. We "can" only see a prosperous street. It "must" be expanded in late 90s last century. I wonder where the citizen's houses "should" be.