— _______ we clean the classroom at once?  — No, you _______. You _______ clean it after school. 

– May I take the magazine out of the reading room?-- No, you can’t. You            read it here. It’s the rule.

 ---  ________ have you kept the book ? --- Since last Month. I ________ return it to the library today or I can’t borrow one next time. 

Don’t be angry with us. We ____ with you together, but we were busy with our final reports when you called in.

--Morn, must I clean my room now? --No, you          . You can do it tomorrow.