2.Wrong! Grandma is not writing a letter. She is reading a book.
4.wrong!Mother is not cooking. She is writing.(idk if it's correct)
5.Wrong!Helen is not playing. She is listening to music.
6.Wron!Nick is not singing. He is watching TV.
7.Wrong!Sue and Pete are not playing with their toys. They are riding they're bicycles.
8.Wrong! The cat is not tuning. It is sleeping on the clothes.