Who is waiting for you?Why is everybody waiting for you?When do you normally finish work?When have you finished work today?Why have you finished work at 5 o'clock today?At what temperature does water boil?Why does water boil at 100 C°?By what was Victor playing, when I came?Who was playing the guitar, when I came?When did Laura was very untidy?Why does Laura leave her things all over her bedroom?Who leave the things all over the bedroom?For what is Mike looking on?Where will we stay until he finds one?When do Santa Claus give present to all the nice people?Who gives present to all the nice people every year?Who is trying to get throught that chimney?Why is Santa trying to get throught that chimney?