что вы можете сделать хорошо?(написать 8 предложений и в предложениях употреблять слова have/has

I can save our environment.The first I can have paper bags ,becouse plastic is not good for environment.I can good study and have the best marks in school.For planet I can do so what all my friends and others peoples have hobby swap or recycle old clothes.I can have some money and help others.I can help my mum and have dinner with her.