Проверьте артикли . peter’s watch. is it a good watch? yes,it is. whose bag is this? it is ann’s bag. take a bag off the table, please, and put it on the chair. peter’s letter is not on the table. where is the letter? it is in my bag. these are _ chairs. the chairs are in the room. take the chair and sit down. don’t translate these texts from english into russian. answer those questions and learn _ words of lesson 20. mike, come up the table, please, and read the text. on tuesday i go to my lesson in the morning. the lesson begins at 8 o’clock. at the lesson i read _ texts, ask and answer _ questions. at home i write the exercises and learn _ words. ann, put the plates, _ knives, _ forks and _ spoons on the table.
learn the words of lesson 20
в последнем просто exercises
the knives, the forks and the spoons ( если речь о конкретных вещах, а не вообще о любых, тогда без артиклей)
А вообще в тексте есть другие ошибки. Например: to go to my lessons - это калька с русского, правильно to attend classes(ходить на уроки, занятия)