-Mary,the door bell is ringing.Who's that?-Oh,it's my friend

-Mary,the door bell is ringing.Who's that?-Oh,it's my friend There is someone ringing the door bell.Who _____ it be?A) ca Listen!The bell is ringing.It's time ____ our class. oh,the doorbell’s ringing.ben's opening the door.aladdin's h Who's that at the door?____ is the postman.A.She B.This C.It The bell is ringing .It is time that we begin the class. --who's that at the door?--____ is a postman. The bell is ringing.It is time that we _____the class. Who is that?( )Mary A it's B she's C that's Listen,the bell is ringing.Class is over.Let's have a b_____ Who's that at the door The telephone is ringing.who _____answer it?