who can it be?:"can"用法

who can it be?:can用法 who can it be,求讲解 If that is not yours,( )?A、who can it be B、whose can it beC、who it can be D、it can be whose who can do it? who can it 急要 Who can it be at this time of Remain concerned about your person who can it be? who can it be at the door?准确翻译 if can tdo it who can. who can be your friend who can be my friend? how can it be.. it can be done It can be proved. Who ------it be?It must be Mr.Wang A may B must C might D can ---Someone got full marks in the last math exam.---Guess _____?A:who can it be B:who it can be C:who could it be D:who it could be .请问大家应该选什么? 初中英语情态动词表推测的题,选什么?5.–Look,someone is coming.Guess_______ .--Jack.He`s always on time.A.who can it be B.who he mayC.who he can be D.who it can be Whose can I be,who can be my的意思?