It's a rule in my class that our classroom -- before 6.00 pm

It's a rule in my class that our classroom -- before 6.00 pm It’s a rule in our school that the classroom _________ every It is a rule in our school that no books ___________________ Look,that is our classroom.Let's goand have a look.Oh,it's b there is a rule in my school that（定语从句 that 指rule对吗） It's()to()()our classroom. the book is so a() that moststudents in our class like it 阅读理解Here is a picture.It's a picture of my classroom.In the that's usually my rule of thumb who was in the classroom at that time?A.Yes,it's Jack B.None We make it a rule to knock at the door before you come in.I 英语翻译It's not what we do once in a while that counts;it's our