1. Wipe off the board clean before you leave Correct 2. Clean the board before you leave Correct 3. Who hasn't been graded the workbook, please raise your hand? Incorrect. It needs rewording and the question mark needs removing. YOu are making a request, not asking a question. "Who hasn't had their workbook graded please raise your hand." 4. He had been sleeping in class Correct 5. He was sleeping during half of my lesson Correct 6. He needs to be more careful with his workbook Correct 7. He needs to do workbook more carefully.He has made a lot of spelling and grammar mistakes You need to replace 'workbook' with 'his workbook' or 'the workbook'. 8.What grades did you get in Math? I got an 8 'grade', not 'grades'.

8. grade

Thank you teacher Rue 😊

1. Delete "off" and it'll be correct 3. Who hasn't had their workbook graded? Please raise your hand. 7 .He needs to do his workbook tasks/homework more carefully....[the rest is correct] Don't forget to put a full stop at the end of your sentences.