2.1)you are
2)he is
3)she is
4)it is
5)we are
6)they are
4.3)I am reading
4)she is writing
5)you are jumping
6)we are making a sandwich
7)i am driving a car
8)she is painting a picture
9)you are playing the piano
10)they are watching TV
11)he is singing a song
12we are dancing