3. is she reading a newspaper? No, she isn't. she's reading a book.
4. is she have a lesson? no, she isn't. she have a break. (или у нее урок? картинка отсвечивает, посмотри сама. если всё-таки урок, то yes, she is).
5. is she planting flowers? No, she isn't. she is drawing it.
6. is it snowing? no, it isn't. it's raining.