Today is Friday. lt's a very busy afternoon. lt's four o'clock now. Most ofthe students of Class Six are having P.E. They are playing sports in theplayground. The boys are playing basketball or soccer. The girls arejumping the roре. They are having a good time. But there are somestudents in the classroom. What are they doing ? Look ! Mary and Lindaare cleaning the blackboard. Peter is kind of tired()IE ft ÉỚI). He's sleeping.Emma's math is a little poor. Maria is helping Emma with her math. lsJane writing to her friends ? No, she's writing a new story for the schoolnewspaper. We are all busy on Friday afternoon, but we are all happybecause it's Saturday tomorrow.根据短文内容回答下列问题。51 What day is it today ?52 What are the boys doing in the playground ?53 Who is helping Emma with her math ?54 Why is Peter sleeping ?55 What are Mary and Linda doing ?