Hello everyone .I'm on duty today.As we know,everyone must do cleaning in our class,only in this way can we keep a wonderful environment of our classroom,and I must do it on Thursday.Tanks for listeni...再多一些谢谢Hello everyone . I'm on duty today. As we know, everyone must do cleaning in our class. Beacause we are a community, everyone of our community should take on some work. Besides, do cleaning can make our classroom tidy and neat. Good classroom environment will do good to our study, no one want to study in a terrible place.So doing cleaning is also helpful for ourself. Everyone should do cleaning on time, only in this way can we keep a wonderful environment of our classroom, and I must do it on Thursday. Tanks forlistening to me.