8 a . He came to class on time.
He did all his homework.
He listened to the teacher.
He wrote everything in his notebook.
He got good grades.
He didn't make any mistakes in the English test.
He answered correctly all the questions in the History test.
He helped the teacher to clean the board.
8 b. He didn't come to class on time.
He didn't do all his homework.
He didn't listen to the teacher.
He didn't write everything in his notebook.
He didn't get good grades.
He made mistakes in the English test.
He didn't answer correctly all the questions in the History test.
He didn't help the teacher to clean the board.
